diff -U 3 -H -d -r -N -- opencv-1.1.0.old/otherlibs/highgui/grfmt_png.cpp opencv-1.1.0/otherlibs/highgui/grfmt_png.cpp
--- opencv-1.1.0.old/otherlibs/highgui/grfmt_png.cpp	2006-10-11 12:51:43.000000000 -0400
+++ opencv-1.1.0/otherlibs/highgui/grfmt_png.cpp	2010-05-23 17:46:19.232028822 -0400
@@ -215,7 +215,7 @@
                 png_set_palette_to_rgb( png_ptr );
 
             if( m_color_type == PNG_COLOR_TYPE_GRAY && m_bit_depth < 8 )
-                png_set_gray_1_2_4_to_8( png_ptr );
+                png_set_expand_gray_1_2_4_to_8( png_ptr );
 
             if( m_iscolor && color )
                 png_set_bgr( png_ptr ); // convert RGB to BGR