This was corrected by a shut down update available from the Microsoft Web Site. More is possible but not recommended. The overclocking program is available from the Matrox website. I've got the 32Mb Dual Head OEM version and certainly have no complaints. This instantly fixed the problem I was having.
Card is great for games and serious apps.
I use it both for Unreal Tournament and AutoCAD, no problems. Corp. All Rights Reserved.