diff --git a/layout/html/table/src/nsTableFrame.cpp b/layout/html/table/src/nsTableFrame.cpp
index a5ebacaa0e78..f33bbd2e27ef 100644
--- a/layout/html/table/src/nsTableFrame.cpp
+++ b/layout/html/table/src/nsTableFrame.cpp
@@ -1744,7 +1744,12 @@ NS_METHOD nsTableFrame::ResizeReflowPass1(nsIPresContext&          aPresContext,
           (NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP != childDisplay->mDisplay) &&
           (NS_STYLE_DISPLAY_TABLE_ROW_GROUP    != childDisplay->mDisplay) &&
           (NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP != childDisplay->mDisplay))
-      {
+      { // it's an unknown frame type, give it a generic reflow and ignore the results
+        nsHTMLReflowState kidReflowState(aPresContext, kidFrame, aReflowState,
+                                         availSize, aReason);
+        if (PR_TRUE==gsDebugIR) printf("\nTIF IR: Reflow Pass 1 of unknown frame %p of type %d with reason=%d\n", 
+                                       kidFrame, childDisplay->mDisplay, aReason);
+        ReflowChild(kidFrame, aPresContext, kidSize, kidReflowState, aStatus);
         continue;
       }
       nsSize maxKidElementSize(0,0);
@@ -2453,7 +2458,7 @@ NS_METHOD nsTableFrame::ReflowMappedChildren(nsIPresContext& aPresContext,
   nsIFrame* prevKidFrame = nsnull;
   nsSize    kidMaxElementSize(0,0);
   nsSize*   pKidMaxElementSize = (nsnull != aDesiredSize.maxElementSize) ? &kidMaxElementSize : nsnull;
-  PRBool    result = PR_TRUE;
+  nsresult  rv = NS_OK;
 
   nsReflowReason reason;
   if (PR_FALSE==RequiresPass1Layout())
@@ -2500,14 +2505,15 @@ NS_METHOD nsTableFrame::ReflowMappedChildren(nsIPresContext& aPresContext,
       nscoord x = aReflowState.leftInset + kidMargin.left;
       nscoord y = aReflowState.topInset + aReflowState.y + topMargin;
       if (PR_TRUE==gsDebugIR) printf("\nTIF IR: Reflow Pass 2 of frame %p with reason=%d\n", kidFrame, reason);
-      ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, aStatus);
+      rv = ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, aStatus);
       // Did the child fit?
       if ((kidFrame != mFirstChild) && (desiredSize.height > kidAvailSize.height))
       {
-        // The child is too wide to fit in the available space, and it's
+        // The child is too tall to fit in the available space, and it's
         // not our first child
+        // XXX TROY: checking mFirstChild here is probably wrong.  Should check to see if its the first row group?
         PushChildren(kidFrame, prevKidFrame);
-        result = PR_FALSE;
+        //XXX TROY: set aStatus?
         break;
       }
 
@@ -2568,6 +2574,15 @@ NS_METHOD nsTableFrame::ReflowMappedChildren(nsIPresContext& aPresContext,
         break;
       }
     }
+    else
+    {// it's an unknown frame type, give it a generic reflow and ignore the results
+        nsHTMLReflowState kidReflowState(aPresContext, kidFrame, aReflowState.reflowState,
+                                         nsSize(0,0), eReflowReason_Resize);
+        nsHTMLReflowMetrics desiredSize(nsnull);
+        if (PR_TRUE==gsDebug) printf("\nTIF : Reflow Pass 2 of unknown frame %p of type %d with reason=%d\n", 
+                                       kidFrame, childDisplay->mDisplay, eReflowReason_Resize);
+        ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, aStatus);
+    }
 
     // Get the next child
     kidFrame->GetNextSibling(kidFrame);
@@ -2576,7 +2591,7 @@ NS_METHOD nsTableFrame::ReflowMappedChildren(nsIPresContext& aPresContext,
   }
 
   // Update the child count
-  return result;
+  return rv;
 }
 
 /**
diff --git a/layout/html/table/src/nsTableRowFrame.cpp b/layout/html/table/src/nsTableRowFrame.cpp
index 07cbf6c9157f..e53df8bb4120 100644
--- a/layout/html/table/src/nsTableRowFrame.cpp
+++ b/layout/html/table/src/nsTableRowFrame.cpp
@@ -447,6 +447,7 @@ NS_METHOD nsTableRowFrame::ResizeReflow(nsIPresContext&      aPresContext,
   if (nsnull == mFirstChild)
     return NS_OK;
 
+  nsresult    rv=NS_OK;
   nsSize      kidMaxElementSize;
   PRInt32     prevColIndex = -1;       // remember the col index of the previous cell to handle rowspans into this row
   nsSize*     pKidMaxElementSize = (nsnull != aDesiredSize.maxElementSize) ?
@@ -525,7 +526,7 @@ NS_METHOD nsTableRowFrame::ResizeReflow(nsIPresContext&      aPresContext,
                                          eReflowReason_Resize);
         if (gsDebug) printf ("%p RR: avail=%d\n", this, availWidth);
         nsReflowStatus status;
-        ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, status);
+        rv = ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, status);
         if (gsDebug) printf ("%p RR: desired=%d\n", this, desiredSize.width);
 #ifdef NS_DEBUG
         if (desiredSize.width > availWidth)
@@ -595,6 +596,15 @@ NS_METHOD nsTableRowFrame::ResizeReflow(nsIPresContext&      aPresContext,
 
       if (PR_TRUE==gsDebug) printf("  past PlaceChild, aReflowState.x set to %d\n", aReflowState.x);
     }
+    else
+    {// it's an unknown frame type, give it a generic reflow and ignore the results
+      nsHTMLReflowState kidReflowState(aPresContext, kidFrame, aReflowState.reflowState,
+                                       nsSize(0,0), eReflowReason_Resize);
+      nsHTMLReflowMetrics desiredSize(nsnull);
+      if (PR_TRUE==gsDebug) printf("\nTIF : Reflow Pass 2 of unknown frame %p of type %d with reason=%d\n", 
+                                     kidFrame, kidDisplay->mDisplay, eReflowReason_Resize);
+      ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, aStatus);
+    }
 
     // Get the next child
     kidFrame->GetNextSibling(kidFrame);
@@ -617,12 +627,15 @@ NS_METHOD nsTableRowFrame::ResizeReflow(nsIPresContext&      aPresContext,
   
   if (aDesiredSize.width > aReflowState.reflowState.maxSize.width) 
   {
-    printf ("%p error case, desired width = %d, maxSize=%d\n",
-            this, aDesiredSize.width, aReflowState.reflowState.maxSize.width);
-    fflush (stdout);
+    if (gsDebug)
+    {
+      printf ("%p error case, desired width = %d, maxSize=%d\n",
+              this, aDesiredSize.width, aReflowState.reflowState.maxSize.width);
+      fflush (stdout);
+    }
   }
   NS_ASSERTION(aDesiredSize.width <= aReflowState.reflowState.maxSize.width, "row calculated to be too wide.");
-  return NS_OK;
+  return rv;
 }
 
 /**
@@ -731,9 +744,18 @@ nsTableRowFrame::InitialReflow(nsIPresContext&      aPresContext,
       PlaceChild(aPresContext, aReflowState, kidFrame, kidRect, aDesiredSize.maxElementSize,
                  &kidMaxElementSize);
       x += kidSize.width + margin.right;
-      if (PR_FALSE==aDoSiblings)
-        break;
     }
+    else
+    {// it's an unknown frame type, give it a generic reflow and ignore the results
+      nsHTMLReflowState kidReflowState(aPresContext, kidFrame, aReflowState.reflowState,
+                                       nsSize(0,0), eReflowReason_Resize);
+      nsHTMLReflowMetrics desiredSize(nsnull);
+      if (PR_TRUE==gsDebug) printf("\nTIF : Reflow Pass 2 of unknown frame %p of type %d with reason=%d\n", 
+                                     kidFrame, kidDisplay->mDisplay, eReflowReason_Resize);
+      ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, aStatus);
+    }
+    if (PR_FALSE==aDoSiblings)
+      break;
   }
 
   SetMaxChildHeight(aReflowState.maxCellHeight, maxTopMargin, maxBottomMargin);  // remember height of tallest child who doesn't have a row span
diff --git a/layout/tables/nsTableFrame.cpp b/layout/tables/nsTableFrame.cpp
index a5ebacaa0e78..f33bbd2e27ef 100644
--- a/layout/tables/nsTableFrame.cpp
+++ b/layout/tables/nsTableFrame.cpp
@@ -1744,7 +1744,12 @@ NS_METHOD nsTableFrame::ResizeReflowPass1(nsIPresContext&          aPresContext,
           (NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP != childDisplay->mDisplay) &&
           (NS_STYLE_DISPLAY_TABLE_ROW_GROUP    != childDisplay->mDisplay) &&
           (NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP != childDisplay->mDisplay))
-      {
+      { // it's an unknown frame type, give it a generic reflow and ignore the results
+        nsHTMLReflowState kidReflowState(aPresContext, kidFrame, aReflowState,
+                                         availSize, aReason);
+        if (PR_TRUE==gsDebugIR) printf("\nTIF IR: Reflow Pass 1 of unknown frame %p of type %d with reason=%d\n", 
+                                       kidFrame, childDisplay->mDisplay, aReason);
+        ReflowChild(kidFrame, aPresContext, kidSize, kidReflowState, aStatus);
         continue;
       }
       nsSize maxKidElementSize(0,0);
@@ -2453,7 +2458,7 @@ NS_METHOD nsTableFrame::ReflowMappedChildren(nsIPresContext& aPresContext,
   nsIFrame* prevKidFrame = nsnull;
   nsSize    kidMaxElementSize(0,0);
   nsSize*   pKidMaxElementSize = (nsnull != aDesiredSize.maxElementSize) ? &kidMaxElementSize : nsnull;
-  PRBool    result = PR_TRUE;
+  nsresult  rv = NS_OK;
 
   nsReflowReason reason;
   if (PR_FALSE==RequiresPass1Layout())
@@ -2500,14 +2505,15 @@ NS_METHOD nsTableFrame::ReflowMappedChildren(nsIPresContext& aPresContext,
       nscoord x = aReflowState.leftInset + kidMargin.left;
       nscoord y = aReflowState.topInset + aReflowState.y + topMargin;
       if (PR_TRUE==gsDebugIR) printf("\nTIF IR: Reflow Pass 2 of frame %p with reason=%d\n", kidFrame, reason);
-      ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, aStatus);
+      rv = ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, aStatus);
       // Did the child fit?
       if ((kidFrame != mFirstChild) && (desiredSize.height > kidAvailSize.height))
       {
-        // The child is too wide to fit in the available space, and it's
+        // The child is too tall to fit in the available space, and it's
         // not our first child
+        // XXX TROY: checking mFirstChild here is probably wrong.  Should check to see if its the first row group?
         PushChildren(kidFrame, prevKidFrame);
-        result = PR_FALSE;
+        //XXX TROY: set aStatus?
         break;
       }
 
@@ -2568,6 +2574,15 @@ NS_METHOD nsTableFrame::ReflowMappedChildren(nsIPresContext& aPresContext,
         break;
       }
     }
+    else
+    {// it's an unknown frame type, give it a generic reflow and ignore the results
+        nsHTMLReflowState kidReflowState(aPresContext, kidFrame, aReflowState.reflowState,
+                                         nsSize(0,0), eReflowReason_Resize);
+        nsHTMLReflowMetrics desiredSize(nsnull);
+        if (PR_TRUE==gsDebug) printf("\nTIF : Reflow Pass 2 of unknown frame %p of type %d with reason=%d\n", 
+                                       kidFrame, childDisplay->mDisplay, eReflowReason_Resize);
+        ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, aStatus);
+    }
 
     // Get the next child
     kidFrame->GetNextSibling(kidFrame);
@@ -2576,7 +2591,7 @@ NS_METHOD nsTableFrame::ReflowMappedChildren(nsIPresContext& aPresContext,
   }
 
   // Update the child count
-  return result;
+  return rv;
 }
 
 /**
diff --git a/layout/tables/nsTableRowFrame.cpp b/layout/tables/nsTableRowFrame.cpp
index 07cbf6c9157f..e53df8bb4120 100644
--- a/layout/tables/nsTableRowFrame.cpp
+++ b/layout/tables/nsTableRowFrame.cpp
@@ -447,6 +447,7 @@ NS_METHOD nsTableRowFrame::ResizeReflow(nsIPresContext&      aPresContext,
   if (nsnull == mFirstChild)
     return NS_OK;
 
+  nsresult    rv=NS_OK;
   nsSize      kidMaxElementSize;
   PRInt32     prevColIndex = -1;       // remember the col index of the previous cell to handle rowspans into this row
   nsSize*     pKidMaxElementSize = (nsnull != aDesiredSize.maxElementSize) ?
@@ -525,7 +526,7 @@ NS_METHOD nsTableRowFrame::ResizeReflow(nsIPresContext&      aPresContext,
                                          eReflowReason_Resize);
         if (gsDebug) printf ("%p RR: avail=%d\n", this, availWidth);
         nsReflowStatus status;
-        ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, status);
+        rv = ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, status);
         if (gsDebug) printf ("%p RR: desired=%d\n", this, desiredSize.width);
 #ifdef NS_DEBUG
         if (desiredSize.width > availWidth)
@@ -595,6 +596,15 @@ NS_METHOD nsTableRowFrame::ResizeReflow(nsIPresContext&      aPresContext,
 
       if (PR_TRUE==gsDebug) printf("  past PlaceChild, aReflowState.x set to %d\n", aReflowState.x);
     }
+    else
+    {// it's an unknown frame type, give it a generic reflow and ignore the results
+      nsHTMLReflowState kidReflowState(aPresContext, kidFrame, aReflowState.reflowState,
+                                       nsSize(0,0), eReflowReason_Resize);
+      nsHTMLReflowMetrics desiredSize(nsnull);
+      if (PR_TRUE==gsDebug) printf("\nTIF : Reflow Pass 2 of unknown frame %p of type %d with reason=%d\n", 
+                                     kidFrame, kidDisplay->mDisplay, eReflowReason_Resize);
+      ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, aStatus);
+    }
 
     // Get the next child
     kidFrame->GetNextSibling(kidFrame);
@@ -617,12 +627,15 @@ NS_METHOD nsTableRowFrame::ResizeReflow(nsIPresContext&      aPresContext,
   
   if (aDesiredSize.width > aReflowState.reflowState.maxSize.width) 
   {
-    printf ("%p error case, desired width = %d, maxSize=%d\n",
-            this, aDesiredSize.width, aReflowState.reflowState.maxSize.width);
-    fflush (stdout);
+    if (gsDebug)
+    {
+      printf ("%p error case, desired width = %d, maxSize=%d\n",
+              this, aDesiredSize.width, aReflowState.reflowState.maxSize.width);
+      fflush (stdout);
+    }
   }
   NS_ASSERTION(aDesiredSize.width <= aReflowState.reflowState.maxSize.width, "row calculated to be too wide.");
-  return NS_OK;
+  return rv;
 }
 
 /**
@@ -731,9 +744,18 @@ nsTableRowFrame::InitialReflow(nsIPresContext&      aPresContext,
       PlaceChild(aPresContext, aReflowState, kidFrame, kidRect, aDesiredSize.maxElementSize,
                  &kidMaxElementSize);
       x += kidSize.width + margin.right;
-      if (PR_FALSE==aDoSiblings)
-        break;
     }
+    else
+    {// it's an unknown frame type, give it a generic reflow and ignore the results
+      nsHTMLReflowState kidReflowState(aPresContext, kidFrame, aReflowState.reflowState,
+                                       nsSize(0,0), eReflowReason_Resize);
+      nsHTMLReflowMetrics desiredSize(nsnull);
+      if (PR_TRUE==gsDebug) printf("\nTIF : Reflow Pass 2 of unknown frame %p of type %d with reason=%d\n", 
+                                     kidFrame, kidDisplay->mDisplay, eReflowReason_Resize);
+      ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, aStatus);
+    }
+    if (PR_FALSE==aDoSiblings)
+      break;
   }
 
   SetMaxChildHeight(aReflowState.maxCellHeight, maxTopMargin, maxBottomMargin);  // remember height of tallest child who doesn't have a row span