it seems that i cant install my usb drivers for my motherboard GA-K8NSC-939, it says "USB 2.0 Host Controller use the inbox driver in Service Pack 1, Please upgrade to Windows Xp SP1 and rescan hardware changes in Device Manage". the thing is that i already have sp1....
I don't know if this will help but try going to Windows update and install all updates to SP1 and see what happens. I know most of them are security updates but some might not be.