Index: /trunk/src/VBox/Additions/WINNT/Graphics/Wine/wined3d/device.c
===================================================================
--- /trunk/src/VBox/Additions/WINNT/Graphics/Wine/wined3d/device.c	(revision 43704)
+++ /trunk/src/VBox/Additions/WINNT/Graphics/Wine/wined3d/device.c	(revision 43705)
@@ -5532,5 +5532,5 @@
      * loading. */
     d3dfmt_get_conv(dst_impl, FALSE, TRUE, &dummy_desc, &convert);
-    if (convert != NO_CONVERSION)
+    if (convert != NO_CONVERSION || dummy_desc.convert)
         return IWineD3DSurface_BltFast(dst_surface, dst_x, dst_y, src_surface, src_rect, 0);
 
Index: /trunk/src/VBox/Additions/WINNT/Graphics/Wine/wined3d/surface.c
===================================================================
--- /trunk/src/VBox/Additions/WINNT/Graphics/Wine/wined3d/surface.c	(revision 43704)
+++ /trunk/src/VBox/Additions/WINNT/Graphics/Wine/wined3d/surface.c	(revision 43705)
@@ -2865,5 +2865,5 @@
 #endif
 
-    if (!(This->Flags & SFLAG_DONOTFREE)) {
+    if (!(This->Flags & SFLAG_DONOTFREE) && !This->resource.format_desc->convert) {
         HeapFree(GetProcessHeap(), 0, This->resource.heapMemory);
         This->resource.allocatedMemory = NULL;