Index: /trunk/src/VBox/Additions/WINNT/Graphics/Video/disp/wddm/VBoxD3DIf.cpp
===================================================================
--- /trunk/src/VBox/Additions/WINNT/Graphics/Video/disp/wddm/VBoxD3DIf.cpp	(revision 43620)
+++ /trunk/src/VBox/Additions/WINNT/Graphics/Video/disp/wddm/VBoxD3DIf.cpp	(revision 43621)
@@ -710,5 +710,9 @@
             IDirect3DVertexBuffer9  *pD3D9VBuf;
             hr = pDevice9If->CreateVertexBuffer(pAllocation->SurfDesc.width,
-                    vboxDDI2D3DUsage(pRc->RcDesc.fFlags),
+                    vboxDDI2D3DUsage(pRc->RcDesc.fFlags)
+#ifdef VBOX_WITH_NEW_WINE
+                    & (~D3DUSAGE_DYNAMIC) /* <- avoid using dynamic to ensure wine does not switch do user buffer */
+#endif
+                    ,
                     pRc->RcDesc.Fvf,
                     vboxDDI2D3DPool(pRc->RcDesc.enmPool),