diff --git a/layout/forms/nsButtonFrameRenderer.cpp b/layout/forms/nsButtonFrameRenderer.cpp
index 8138bd5216d..a4c32d0fa9b 100644
--- a/layout/forms/nsButtonFrameRenderer.cpp
+++ b/layout/forms/nsButtonFrameRenderer.cpp
@@ -67,7 +67,7 @@ nsButtonFrameRenderer::Redraw()
   mFrame->GetRect(rect);
   rect.x = 0;
   rect.y = 0;
-  mFrame->Invalidate(rect, PR_TRUE);
+  mFrame->Invalidate(rect, PR_FALSE);
 }
 
 void 
diff --git a/layout/html/forms/src/nsButtonControlFrame.cpp b/layout/html/forms/src/nsButtonControlFrame.cpp
index c5838e20f0a..e2f703947f5 100644
--- a/layout/html/forms/src/nsButtonControlFrame.cpp
+++ b/layout/html/forms/src/nsButtonControlFrame.cpp
@@ -266,7 +266,7 @@ nsButtonControlFrame::AttributeChanged(nsIPresContext* aPresContext,
   } else {
     if (nsHTMLAtoms::value == aAttribute) {
      // redraw button with the changed value
-      Invalidate(mRect, PR_TRUE);
+      Invalidate(mRect, PR_FALSE);
     }
   }
   return result;
@@ -590,7 +590,7 @@ nsButtonControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
 void
 nsButtonControlFrame::Redraw()
 {	nsRect rect(0, 0, mRect.width, mRect.height);
-    Invalidate(rect, PR_TRUE);
+    Invalidate(rect, PR_FALSE);
 
 }
 
diff --git a/layout/html/forms/src/nsButtonFrameRenderer.cpp b/layout/html/forms/src/nsButtonFrameRenderer.cpp
index 8138bd5216d..a4c32d0fa9b 100644
--- a/layout/html/forms/src/nsButtonFrameRenderer.cpp
+++ b/layout/html/forms/src/nsButtonFrameRenderer.cpp
@@ -67,7 +67,7 @@ nsButtonFrameRenderer::Redraw()
   mFrame->GetRect(rect);
   rect.x = 0;
   rect.y = 0;
-  mFrame->Invalidate(rect, PR_TRUE);
+  mFrame->Invalidate(rect, PR_FALSE);
 }
 
 void