hmm my Computer is a 3200+ with Gforce graphics card 256mb i got 512 memory running windows xp pro sp2

what it is my comp run find on the desktop i can go on the net do wat i want with no prob wen i play games recently being c&c Generals zero hour afta 10 or so minutes into the game it just locks up cant move the mouse or anything i have to reboot and its rly gettin on my nerves ive tried fixin it

i tried a new graphics card i did have an ati radeon 128mb card but i upgraded it to a nivida but my prob still here dident fix it ive tried formattin the comp n startin again from scratch see if it was a virus or sommit
the prob still here im rly stuck n need sum help i dunt know wat the prob is and its messin my comp up happenin with all games i play

Can you please provide some specifics about your system? MB make/model, Gforce make and Model, Ram type? Thank you and welcome to DAL!