Well i just bought a dell dimension 4700 and i had to return the comp i got becauz of cd problems and i got a new comp. Now my mouse pointer moves itself to the corners when the pointer is on much movement like in UT. I've tried 2 diffrend mouses logitech mx310 and a dell optical mouse wich i bought with the comp and it happends with both, tried to reinstall drivers and all the stuff MyM told me but nothing works does just work at start but start going to the corners again. Is someone who can help me? Someone had this problem?