Just a quick note for anyone who downloaded the OpenGL Ext Viewer 3.33 as soon as it was released 28 Oct '10. They have quietly re-released version 3.33 today 29 Oct '10 at 16.50 GMT to fix a long standing bug in the file Extension.xml file for the DirectX9 version reporting. So if you have the latest DX version installed, it now reports correctly as 9.0c - June2010 plus for Vista/Win7 adds 10.0/10.1 or 11. It used to report latest Dx9c as Feb2010.