Okay, I've figured it out. It's my mobo (soyo k7v dragun plus - kt266a). It's not the vid. card, sound card, or windows xp - those all work fine. How have I come to this conclusion, you ask? Well, remember the last post I made that talked about the pci slots not working? I decided to try my TV Tuner in the top four slots and it wouldn't work either, and that IRQ signing problem? I'm pretty sure it's not a windows xp thing, because it always assign whatever card I put in the last (6th) pci slot - farthest away from the video card - the same irq as the video card! Which explains, why, when I tried my TV Tuner in the 6th slot, it would say failed to initialize video. Thank you Soyo. "six PCI slots" - yeah, only one works. So, what do I do now? I'm sure my motherboard is still under warranty, I bought it back in August. Could I possibly send it back and exchange it for a new one? Would exchanging the mobo for an identical one possibly fix the problem, or would I still have the same PCI slot problems? There isn't anything I could do that could possibly fix the PCI slot problems without having to send it back, is there (because I wouldn't be with a PC for about a week - ew)?