I recently purchased a WD 120 GB external USB 2 hard drive, and an Addonics USB 2.0/ firwire card with an NEC chip. The hard drive gets recognized and operates fine when plugged into my pre-existing 1.1 ports, but when plugged in to my new 2.0 ports...it puts my computer into a constant reboot loop until I turn the hard drive off. The funny thing is that other things operate just fine off of the new 2.0 ports, just the hard drive won't work. Any suggestions?? Thanks!!