Got myself a Zotac Amp GTX280 a couple of weeks ago second hand. Worked absolutely fine. Needed to take the card back out of the pc. I shut the pc down but forgot to switch the power off to the motherboard before removing the card. Now it doesn't work at all. So I'm after some advice on what damage I'm likely to have done to the card and whether it's repairable, or have I got a £200+ doorstop/paperweight? Thanks