Hmm zzzzz... Huh? Oh, EDID...not being detected correctly... common problem with beta drivers. Will be fixed...later relase... Meanwhile... you can fire up the old driver... export EDID with nvidia-settings panel... Load the new settings with something like loadcustomedid= in xorg.conf no, you're right, that's not quite the correct line to use. And it's too far past my bedtime to look it up. Somebody else refresh my memory.