Index: /trunk/src/VBox/Additions/WINNT/Graphics/Video/mp/wddm/VBoxMPVbva.cpp
===================================================================
--- /trunk/src/VBox/Additions/WINNT/Graphics/Video/mp/wddm/VBoxMPVbva.cpp	(revision 55708)
+++ /trunk/src/VBox/Additions/WINNT/Graphics/Video/mp/wddm/VBoxMPVbva.cpp	(revision 55709)
@@ -551,5 +551,5 @@
     if (cbHwBufferContiguousAvail < cb)
     {
-        if (cb < pVBVA->cbData - pVBVA->off32Free)
+        if (cb > pVBVA->cbData - pVBVA->off32Free)
         {
             /* the entire contiguous part is smaller than the requested buffer */