HELP/ GAME CRASH/ ONLY SOLUTION IS SHUTDOWN CPU !!

[RUZGORE]

CPU Win 7 64 bit , core i5 , 4gb ram , nvidia gforce gt325m 1gb.
My problem happens not every game but like 2 games out of 4 so 50% .

Problem is that wwhen i play game crashes just stuck with one screen .. and i cant do nuthin no ctrl+alt+delete work nuthin... only solution is shut down the cpu. ?!?! anyone , i tryd reinstall same problem ..

[fr4ser]