RWlodarczyk wrote:
Please ensure that %windir%\system32\evr.dll and milcore.dll have the same date/time stamp (well, at least the dates should be the same). If not, please uninstall WPF, manually delete evr.dll and milcore.dll if they are left behind, and reinstall WPF.

The two files mentioned have the same timestamp, so I guess this is not the issue and it is a driver issue.  Once the drivers are updated I will let you know.