Is it better to run this game on 720P or 1080? I have a Sony tv that supports 1080p. Thanks for the help.

play in 1080p

The reason I ask , is that I have seen the treads on grainy textures.

If you're worried about grainy textures, you want as much detail as possible. 1080P is the "clearest." 1080P breaks your screen down into 1080 lines and the P scans all of them at once across your screen. If you go to 780P, you're only going to have 780 lines on the same size screen. Equaling less detail. Also, don't even bother with I variants of either, because it interlaces your TV, which scans every other line at a time. (think of your shoe laces) Now the contrast ratio of your TV can hugely impact the "crispness" of graphics, but that's a whole other subject

IMO, I have not noticed any grainy textures. I'm running a Toshiba 1080P 120 Hz LCD TV. All though, I've only played MP. So not a lot of time to soak in the graphics. If there is, it's nothing obvious.

can you clarify what you mean by grainy,because your sharpness settings might be too high also the game will be upscaled no matter what be it by the xbox or tv anyway

It seems to have alot to do with when I run and also the faces of the infected people. They seem quite blurry. Mostly the graphics are great. I havent checked the sharpness settings on my tv though.

if u havent seen grainy graphics then your set is ok do go off other threads everyones set up is different