The card is an AGP X800XL. I got it from an RMA of my X800 PRO (so it was meant to be new). Now, I recently sold it on eBay. The guy that got it has just emailed me and he seems to be having problems. We both agreed that it would be too costly to send the card up and down, so we are trying to get it to work. Now, he said the problem is that it intermittently works on one motherboard, worked fine on a motherboard for around 1 hour (then after the reboot stopped again) and would not work on 2 other board at all. When it doesnt work, there is no video signal that is displayed at all; nothing comes up on screen. Yet, when it does work, there are not problems at all. He has tried a whole range of different things (motherboards/memory/power supplies from 400-600W), and has tried it on a system that works fine with an X850XT PE. Another thing he said was that when he didnt plug in the power molex, he gets the usual "please insert power molex" error on the screen, or the usual beeping from the motherboard. This occurs on ALL the boards; so they all pick up the card when he doesnt have the power in. Any ideas? The help is really really appreciated!