Hiya.

How about "Other"? I use the Color Calibration tool that comes with the forceware drivers for my Leadtech A4 GeForce 6800 GT (256MB). I calibrate it any time the light level changes significantly (re: day/night, blinds open/closed/half-open, etc.). It's easy, and takes about 20 seconds.

If I do it 'manually', I just change my desktop bg to black and then adjust Brightness so that black looks black. It's slowly becomeing a pet peeve of mine, where people (especially those making visual computer arts; games, 3d, d2, etc.) just crank up their Brightness and Contrast to 100%, post a screen shot, and everyone (like me) who has actually calibrated their monitor sees pretty much nothing but a black picture with a pin prick of light here and there.