Just giving a heads up to the community....I just built a new system and switched over from Intel to AMD 64 X2 and also from ATI to NVIDIA SLI. I have 2 EVGA 7800GT CO's in SLI and have used the 81.85 and the new 81.94 drivers. The problem is that Corel Paint Shop Pro will not install using the NVIDIA 81.xx series drivers, it hangs when the install is at "registering modules". I swapped 81.xx drivers with the 77.xx series and PSP9 loads with no problems. Also used an ATI card in the new AMD 64 X2 system and it loads fine so it seems to be a problem between Corel/Nvidia 81.xx series. Link below shows that other are experiencing the problem and have contacted Corel but it appears that neither Nvidia or Corel are taking notice of the issue.

NVIDIA 81.xx series drivers and Corel Paint Shop Pro 9 & 10 Problems

Any community feedback would be appreciated!