manic

You need to install mobo drivers. Do you have the disk that came
with motherboard? If not use a program like everest to tell you what
make and model of mobo you have, then go to manufacturer website
and download mobo drivers as well as your audio codec.
When you install sp2 your usb problems should be over, if not. Go into
device manager and remove usb entries, then reboot and your usb2.0
should be ok.