...You might have an interrupt conflict with your usb port.. try this: click on start/settings/control panel, double click on system, double click on the first item under system devices, and click on something which (i think) reads interrupts, or IRQ ... see if the USB is on the same number as something else... (sorry, don't have the exact directions here - I'm running windows 2000)
-mark

...proud to have one of the first Mark I units