Yeah,I'm going to the store today,I'll ask either for a full refund or a new card...thank you all anyways you guys have been really helpfull,great forum this is.
ok listen...this is a picture of my temperature (while idle)
http://img55.imageshack.us/img55/2980/ntemperature7kg.jpg
but the funny thing was..that nothing changed when I played some games,the temperature was the same,I've checked it.
I've bought a GeFroce 6600 256MB and everytime when I play games on my computer I have this weird problem:
http://img223.imageshack.us/img223/2681/untitled2tq.png
and it's happening on all the games.
I've tried to update my driver...no go.
I think the GeForce has overheated but I'm not sure...