I've just finished installing a new motherboard (Asus P5P43TD) into a friend's computer about 2 hours ago and have been unable to get the USB ports working. I installed the chipset drivers, Ethernet controller drivers, and Asus EPU-4 drivers, but the USB ports simply do not function. Which means I have to do everything with a friggin keyboard. That has made things interesting to say the least. I grabbed the most recent chipset drivers off of Asus's website and it installed the SMBus drivers (which I beleive are responsible for USB) and everything else. Any help is greatly appreciated. Specifications: Motherboard: Asus P5P43TD Video Card: XFX 8800 GTX Sound Card: Creative Extreme Gamer OS: Vista 32 bit Hard drive, Optical drive, and PSU are unknown.