I am running a Duron 800 mhz system built by local company. After a fresh install of Windows xp anytime I try to install a USB device my system crashes and then won't even restart without locking up on loading of XP. Everything looks good in Device manager it displays the USB root hub and drivers for the usb. I even tried installing a pci USB hub so I could use my USB printer would detect but then lock up again. Totally frustrated.