nacaru

Looks like you posted this a whole month ago, so I hope you found a way out of your conundrum by now. if not though, your symptoms sound a lot like a problem I was having with my radeon 8500dv awhile back. Turns out my power supply wasn't getting enough power through to my video card. Some things to try: disable dual monitor display--unplug your tv output cables. Attach a power cable directly to your video card (8500dv has this option; dunno about the 9000). And/or replace your power supply.