in the bios under integrated peripherals did you enable the usb 1.1 & 2 controllers? what shows up in device manager under universal serial bus controller? does it show usb enhanced controller & usb 2 root hub??
2 ways of getting to device manager. 1: start-control panel-system-device manager 2: right click my computer icon if on desktop-left click properties-device manager
what windows are you using?? once in the device manager goto the bottom of the list which is the universal serial bus controller