Ahh I was wondering when someone would point out the resolution.

Good call medley - forgot one though - 1440x900.

There may also however be a problem with the display driver, and the video output cannot match the monitors native resolution. In this case the settings wont see the proper resolution anyway.

Find out your video card model number, it should show it in device manager under 'display'. Look that up and then go to the MFR's web site (ex: ati.amd.com), look up your models driver.

If your card is something like, say a Radeon 7000, unfortunately Win7 does not support that card and can only provide it with low performance generic drivers, that means also only 4:3 aspect and limited resolution. You may need a new video card.