no in my display properties it is set as second monitor with no taskbar and no icons. I only use it to display temperatures and gpu usage.

Ok i was able to recreate the problem. I pluged my second monitor back in and the problem came back, low res but drop box displaying 1680x1050.
http://img208.imageshack.us/img208/1979/case10.jpg
Notice how its not displayed in the proper res, probably using my second monitor res (1152x864)

Then i unchecked "use interface desktop resolution" and rebooted the game. Fixed everything.
http://img339.imageshack.us/img339/1028/case2w.jpg