All games that require 3d acceleration basically tell me my video is not supported. When I check the device I see Parallels Vesa BIOS 3.0.2111.89721 I also cannot complete reinstall of Parallel Tools, get error 1935. SFC /scannow reports there is a pending repair that requires a reboot but I cannot determine what it is. Before this everything worked, I was able to run 3d accelerated games without issue, now no game runs. To say the least I am a tad unhappy with the product.
I have tried the steps outlined in http://kb.parallels.com/en/8969 I have tried with AV off (its the MS one anyway) I have tried the increasing the size of the Registry trick, I did not have the key mentioned so I created it. This is all on an i5 iMac 8g Ram, 2 processors and 4g dedicated to the VM. 256mb dedicated to Video (the max allowed though card sports 512) with both 3d buttons checked. I also had a repeated update failure I cannot locate. It takes two boots to get a sign on screen