It's my D-link dwl-g520 wireless pci adapter card... I'm using a Abit AW8 mother board as well. To start with, after installing the card, I was able to start up fine, but then when I tried to install the drivers off the original CD the computer would just freeze shortly after starting to install the drivers, and upon restart the card wouldn't function and device manager said something about drivers being corrupt/not working (I've used this card before and installed from the CD on a previous computer that was using windows XP home). From there, I tried taking out the card and then reinstalling the CD contents then turning the computer off and putting in the card. After doing that, windows would start loading but would then just freeze half way through. I can boot it up in safe mode with the card in, or in normal mode if I take the card out (but can't boot in safe mode with networking). I've tried switching the card between the two PCI slots, but with no luck. Anyone have any ideas?