Hey, im wondering whats wrong with this game, i bought it off steam, and installed it and reinstalled it twice... The sights seem like they are overlapping... how do I fix this?

my power suply says i only have 375 watt DC output though...

so....

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150359&cm_re=ati_4890-_-14-150-359-_-Product

???

well i just looked it up and i have core 2 duo 3.0 ghz e6850 which is conroe, dont know if thats good or bad... would an ATI 3000 or 4000 series allow me to run games (like crysis) on high?

So i should look into a new graphics card and get some more RAM? what graphicscard would you suggest?

I think I have an OK computer, but am still not able to run games like crysis on high settings (super lag)... what component of my computer is limiting the performance?

my specs:

Intel Core 2 duo 3.00ghz

2046mb RAM

ATI Radeon HD 2600 XT

Vista....

What can I improve that will make the most difference?