Hey everyone, my friend was over and wanted to use her external hard drive with my computer... and I discovered that my USB ports on my MacBook no longer work. The appear to charge iPods and give hard disks a little bit of power, but my computer will not mount any disks (including iPods and jumpdrives) attached to it. System profiler says that an iPod is attached, but disk utility does not acknowledge any type of disk. I tried two different external hard drives (my room mate has the same one as my friend) and two different iPods (older nano and newer one) and a jump drive with no success. I also tried the disks and iPods in Windows and in the Boot Camp startup menu. Does anyone have any suggestions short of going to the Apple store in downtown Chicago and probably paying a lot of money (although my computer is still under warranty)?