diff --git a/layout/mathml/base/src/nsMathMLChar.cpp b/layout/mathml/base/src/nsMathMLChar.cpp
index 7ec63526dda4..e07cd6638113 100644
--- a/layout/mathml/base/src/nsMathMLChar.cpp
+++ b/layout/mathml/base/src/nsMathMLChar.cpp
@@ -1069,20 +1069,20 @@ nsMathMLChar::Paint(nsIPresContext*      aPresContext,
     if (eMathMLChar_DONT_STRETCH == mEnum || NS_STRETCH_DIRECTION_UNSUPPORTED == mDirection) {
       // normal drawing if there is nothing special about this char ...
       //printf("Painting %04X like a normal char\n", mData[0]);
-aRenderingContext.SetColor(NS_RGB(255,0,0));
+//aRenderingContext.SetColor(NS_RGB(255,0,0));
       aRenderingContext.DrawString(mData.GetUnicode(), PRUint32(mData.Length()), 
                                    mRect.x, 
                                    mRect.y - (fontAscent - mBoundingMetrics.ascent));
     }
     else if (0 < mGlyph) { // wow, there is a glyph of appropriate size!
      //printf("Painting %04X with a glyph of appropriate size\n", mData[0]);
-aRenderingContext.SetColor(NS_RGB(0,0,255));
+//aRenderingContext.SetColor(NS_RGB(0,0,255));
       mGlyphTable->DrawGlyph(aRenderingContext, mGlyph,
                              mRect.x,
                              mRect.y - (fontAscent - mBoundingMetrics.ascent));
     }
     else { // paint by parts
-aRenderingContext.SetColor(NS_RGB(0,255,0));
+//aRenderingContext.SetColor(NS_RGB(0,255,0));
       if (NS_STRETCH_DIRECTION_VERTICAL == mDirection)
         return PaintVertically(aPresContext, aRenderingContext, fontAscent,
                                mStyleContext, mGlyphTable, mEnum, mRect);
diff --git a/layout/mathml/tests/mathml.css b/layout/mathml/tests/mathml.css
index 8a095448eaf4..b083acee1cd8 100644
--- a/layout/mathml/tests/mathml.css
+++ b/layout/mathml/tests/mathml.css
@@ -301,7 +301,7 @@ mstyle[fontstyle="normal"] mi {
 :-moz-math-font-style-stretchy {
   font-family: CMSY10, CMEX10, MT Extra, Symbol /*,Math1, Math3, Math4, Math5*/;
   font-style: normal;
-  background-color: #3C6;
+/*  background-color: #3C6; */
 }
 
 :-moz-math-font-style-anonymous {