Nvidia Resolution settings ?

[binarynut at comcast.net]

F17-beta
installed kmod-nvidia and blacklisted nouveau .

restarting computer and resolution is so high that characters are so 
small at Desktop you can't see them.

Checked Xorg.conf and the only setting is the Device Section no settings 
for Resolution. What do I put in there for 1280x764 ?

Doesn't the setting in grub2.cfg, vga=31B apply any more ?