I have a "custom" PC, Win 98, 350 mhz, 64 MB RAM. I had to install a PCI USB card as the box did not already have one. After install of the USB card, it appears in the device manger and properties says "this device working properly" when I plug in the USB cable that leads to the scanner, Win 98 does not start looking for drivers, it disables the USB "hub" and the properties box displays the follwing message; "due to hub transfer request failures, a hub has been disabled. Check your computers cabling and devices and restart your computer."
The scanner worked fine on my Dell at home, I tested the cable with a multitester for shorts and it's fine.
The USB hub is sharing an IRQ with the video display adapter, it says there is no conflict, and Win 98 won't let me reset the IRQ's.