This forum is closed. Thank you for your contributions.
For anyone who may be interested.
In Response to http://social.microsoft.com/Forums/en-US/tabspace/thread/1ff2b07d-cff0-4fe1-926e-20b693a36882 locked thread - the screensaver has a compatability issue with nvidia vga. I got it to work by editing the space.scr module using a resource editor. I deleted the offset value:
Enjoy!