[RESOLVED] Problem with USB Ports in Win98 SE

HELP Please!!! I have a BCM SQ600 Pentium Pro Motherboard and can't get the USB Ports to work. I have enabled them in the BIOS and this sees the on-board USB controller. I'm running Win98 SE, which detects the USB Controller and installs the software for it. However, the USB Root Hub then disables itself 'Due to excessive Hub transfer requests'. It does this with or without the cables plugges onto the USB Headers on the Motherboard. I'm running the latest BIOS (B03) from BCM's website, although this isn't very recent. I've e-mailed BCM with no success, they say it's an old USB implementation (1.0) but should work! Any suggestions would be appreciated as I have a scanner I can't get to work. As far as I can tell Win98 should support USB 1.0 but I'm getting very frustrated!