Index: surface.c
===================================================================
RCS file: /home/wine/wine/dlls/d3d8/surface.c,v
retrieving revision 1.15
diff -u -r1.15 surface.c
--- surface.c	4 Jun 2003 23:05:46 -0000	1.15
+++ surface.c	6 Jun 2003 17:29:05 -0000
@@ -604,9 +604,16 @@
 extern HRESULT WINAPI IDirect3DSurface8Impl_AddDirtyRect(LPDIRECT3DSURFACE8 iface, CONST RECT* pDirtyRect) {
   ICOM_THIS(IDirect3DSurface8Impl,iface);
   This->Dirty = TRUE;
-  This->dirtyRect.left   = min(This->dirtyRect.left,   pDirtyRect->left);
-  This->dirtyRect.top    = min(This->dirtyRect.top,    pDirtyRect->top);
-  This->dirtyRect.right  = max(This->dirtyRect.right,  pDirtyRect->right);
-  This->dirtyRect.bottom = max(This->dirtyRect.bottom, pDirtyRect->bottom);
+  if (NULL != pDirtyRect) {
+    This->dirtyRect.left   = min(This->dirtyRect.left,   pDirtyRect->left);
+    This->dirtyRect.top    = min(This->dirtyRect.top,    pDirtyRect->top);
+    This->dirtyRect.right  = max(This->dirtyRect.right,  pDirtyRect->right);
+    This->dirtyRect.bottom = max(This->dirtyRect.bottom, pDirtyRect->bottom);
+  } else {
+    This->dirtyRect.left   = 0;
+    This->dirtyRect.top    = 0;
+    This->dirtyRect.right  = This->myDesc.Width;
+    This->dirtyRect.bottom = This->myDesc.Height;
+  }
   return D3D_OK;
 }