hey- just installed xp home sp2 on a pcchips M741LMRT mobo. All the onboard stuff works fine- vid, lan, sound mouse keyboard, but no usb! I need these two ports to work! There is no usb header in the device manager, try to add new hardware, nothing there. Plugged in bluetooth card to usb port- does not light up. I already bought a pci usb 2.0 card (not yet here)but I still need these ports as well- any thoughts?