Hm, with such configuration you have no problem to play in so high resolution. I have Athlon XP 3200+, 1024 DDR 333 Ram, Radeon 9600/256, Audigy 2 ZS... But (I repeat) I had sharp HUD in LockOn in 1024 x 768. Now I've tried 1280 x 960, but jagged HUD exists - and FPS are low (15-25)