--- a/src/lib/png.c	Tue Jan 26 16:52:02 2010 +0200
+++ b/src/lib/png.c	Tue Jan 26 16:52:18 2010 +0200
@@ -413,9 +413,8 @@
             // unknown
             return;
 
-        if (p >= header->num_palette)
-            // invalid
-            return;
+        // hrhr - assume our working data is valid (or we have 255 palette entries, so it doesn't matter...)
+        assert(p < header->num_palette);
         
         // reference data from palette
         *outp = &header->palette[p];