I just bout and install a new video card. It was running fine then just crashed in the middle of a game. I went to restart my system and nothing happened. No beeps on start up. I reinstalled my old card and my system is fine now. Is there something wrong with the card? power supply 600 wats Asus p4 533-c P4 2.66 2 gigs ram new video card: Sapphire Radeon HD 3650 old video card: G Force 4 TI windows XP