For some reason when I plug in a usb device it no longer shows under my computer as a drive like it should. I am connecting my mmc reader and mp3 player none of them register under my computer as mass storage devices like they used to. The safely remove hardware icon next to the clock is still displayed and the devices work on my friends computer fine. I'm running xp pro. I have tested all 8 of my usb ports and not one of them recgonises the drives, yet equipment powers up as normal and I was able to copy pictures from my camera using the wizard, but drives just don't show up for some reason? Anyone have any idea why?