Be sure that your System BIOS is _not_ set to boot from a USB device.
Steve

"mclaren1975" <mclaren1975@discussions.microsoft.com> wrote in message
news:5F2F9593-E658-4300-982D-61C48482C146@microsoft.com...
> JUST did a clean install of XP Pro and I am having the exact same problem
> that caused me to do the install. If I have ANY USB devices installed, XP
> won't boot. I have four on board USB boards, 2 more PCI cards with 4 each
> for
> a total of 12. I can't seem to locate any updated drivers. Uninstalling
> and
> re-sinstalling the USB drivers doesn't work.
>
> I've tried it with all kind sof combinations of devices and there doesn't
> seem to be a common thread. MoBo, power supply, memory, HD are all fine.
> All
> bought within a year.
>
> Any ideas?