Try this...Remove the USB controllers from your system through the Control Panel, then allow the hardware wizard to re-install them using these steps:
START > Control Panel > then double click on "System".
Expand the Universal Serial Bus Controller category, and highlight every USB showing. Delete them one by one.
Reboot, and your hardware wizard will re-install the USB drivers (have your Win98 OS CD's handy!).
Remember, MOST changes in win98 require rebooting for them to work.
Good luck, and let us know how it works out.
~Ray Darr