ET prob =/

i know this has been posted several times, but i dont care. My problem is that when i play ET it sometimes Freezes during a game or smth. All my other running programs, like winamp (with music on) keep going on and etminimizer + crtl/alt/del don't seem to work, only thing working is restarting pc.. is there something that would work (format or smth)

k, thx :)