Background corrupted after resuming from suspend
I am running Fedora 15 x86_64 with latest (270.41.19) drivers installed directly from Nvidia's own .run file. Overall it looks good -- this version seems to have solved a problem which was causing gnome-shell to crash after resuming from suspend (which is why I didn't wait for RPMFusion RPMs).
However, now when I resume from suspend everything seems functional but the background looks corrupted -- huge white rectangles all around and "mirror images" of the windows. At least changing the background seems to fix the problem, so apparently it isn't anything too serious.