diff -r 06be4b33029d src/video/SDL_blit.c
--- a/src/video/SDL_blit.c	Sun Feb 28 00:21:37 2010 -0500
+++ b/src/video/SDL_blit.c	Thu Feb 17 10:18:42 2011 +0100
@@ -198,7 +198,7 @@
     dstskip = w + info->d_skip;
     if (dst < src) {
         while (h--) {
-            SDL_memcpy(dst, src, w);
+            SDL_memmove(dst, src, w);
             src += srcskip;
             dst += dstskip;
         }