I seem to have the worst luck with this particular card. I'm on my second one that I've bought-the first was DOA. In any case, the second one worked for about two weeks in my Quicksilver. Last weekend, the computer kernel panicked while I was using it. When I restarted the computer, I wasn't able to get any display signal out of the card. Putting the old GeForce4 MX back in returned the computer to normal operation, and I haven't had any issues since. I've since done all the maintenance stuff that I know to do on the card. I started by cleaning the contacts with denatured alcohol. When that didn't work, I took a pencil eraser to the contacts(there was a little bit of tarnish on one) and followed up with another good cleaning with denatured alcohol. I had repasted the GPU before initially installing the card, but did so again just to be safe. I've also cleaned out the slot on the computer. I've tried the card in several other G4s, so know that the problem isn't specific to the Quicksilver. With the card installed, the computer will chime. The fan on the card spins. I'm using it with both an ADC display(17" LCD studio) and a generic 20" LCD connected via the DVI port. The ADC display powers up fine with this card, and I can even use the power button on the display to power up the computer.