pDst was advanced too much when decoding DELTA blocks.

dlls/msrle32/msrle32.c

diff --git a/dlls/msrle32/msrle32.c b/dlls/msrle32/msrle32.c
index 6e34fff..6e81246 100644
--- a/dlls/msrle32/msrle32.c
+++ b/dlls/msrle32/msrle32.c
@@ -89,7 +89,7 @@
 				delta_y = (LONG)*pSrc++;
 				x += delta_x;
 				y += delta_y;
-				pDst += delta_y * pitch + delta_x;
+				pDst += delta_y * pitch;
 				break;
 			default: /* RAW */
 				len = data;