Just to insure that yours is not a GUI issue, I would check that you have the very latest video driver installed. Go to the mfgr's. Web site, and check for yourself - do not let your OS tell you if you have the latest one, as that will be probably 6 mos. out of date.
If you have a Dell, Lenovo, HP, etc., check on their Web site.
If you do have the very latest video driver, or that the very latest driver update does not fix things, then please report back.
Good luck,
Hunt
