Several users are reporting random crashes with updated Nvidia drivers. Jeff recently discovered a setting in the Nvidia Control Panel that seems to be causing this problem. Nvidia says it should normally be turned off, but many users are finding the control turned on instead.
We recommend turning this Threaded Optimization control OFF.
Update: on 7-Nov-08, John (firstname.lastname@example.org) reported on the Rhino Newsgroup that there are no longer problems with threaded optimization in the newest drivers (ver. 180.42). Also these drivers reportedly allow multi-monitors on SLI computers.