diff -r 6bb01861c4c0 src/video/SDL_blit.c
--- a/src/video/SDL_blit.c	Wed Feb 16 04:49:07 2011 -0800
+++ b/src/video/SDL_blit.c	Wed Feb 16 22:51:23 2011 +0100
@@ -214,7 +214,7 @@
 	dstskip = w+info->d_skip;
 	if ( dst < src ) {
 		while ( h-- ) {
-			SDL_memcpy(dst, src, w);
+			SDL_memmove(dst, src, w);
 			src += srcskip;
 			dst += dstskip;
 		}