hey.
i have a problem concerning windows xp service pack2. i reinstalled windows xp few months back because i had a hard disk failure. after installation, eveytime, when i plugged in my external DVD-R or external hard disk to the usb port, an error will pop up on the taskbar. the message is something like this.

this device can perform faster. This USB device can perform faster if you connect it to a Hi-Speed USB 2.0 port. For a list of available ports, click here.

when i clicked on the message, it says that a hi speed usb device attached to non hi speed hub. and stated that the hubs shown in bold type have free ports that can support the HI SPEED USB device. all my six unused ports are under a USB Root Hub which is bold

i thought windows xp2 supplied usb2.0 drivers while installation? What's the problem then?. In device manager, under Universal Serial Bus Controllers, there are :

USB Mass Storage Device
USB Mass Storage Device
USB Mass Storage Device
USB Root Hub
USB Root Hub
USB Root Hub
USB Root Hub
VIA Rev 5 or later USB Universal Host Controller
VIA Rev 5 or later USB Universal Host Controller
VIA Rev 5 or later USB Universal Host Controller
VIA USB Enhanced Host Controller

I have attached few pictures i captured for the error msgs and my device manager. I really hope anyone can solve this problem. Thanks for the time.