I have a pc running XP Home where the onboard USB ports don't appear to be working. Also, the pc refuses to shutdown or start up normally if anything is connected to the usbs ports. They do seem to work in safe mode however.
I have uninstalled them in device manager and have also carried out a repair installation of XP to no effect. I am going to install a pci USB card shortly but can anybody shed any light on what could be going on here?/