SANSA CLIP doesnt show as recognized when plugged in....

My Sansa will not show as recognized when I have it plugged in. When I look in device manager it shows a yellow question mark beside it, iv tried updating firmware but its not working any suggestions? I am running windows XP professional version…Thanks…Josh

Can you connect in USB MSC mode?  (On the Clip, under Settings (press the small home button and then click down), go to USB mode and select MSC.)