For whatever reason my screenshots always turn out looking like this: http://oi58.tinypic.com/2j5icyg.jpg (I'm not allowed to post images apparently) Does anyone have any idea what could be causing this or how to fix it?

Happens on many systems -- something to do with when the screen shot is grabbed by the in game function and post processing done by your combination of video card\monitor. Easiest fix is to use FRAPS (www.fraps.com) free version rather than the in game screenshot maker - or play around with the various game settings until you can find a combination of settings that works correctly ( Much easier to use Fraps.)

Thanks, I'll be using fraps from now on