I bought a whitebox 300GB Seagate HD and an external USB 2.0 enclosure from Mwave. Put them together w/ jumper set to auto select and I can't get to it through XP on my notebook. My old desktop drive shows up fine but I no longer have a desktop to work with. It shows as a USB Mass Storage Device but I have no way to format it. I can't get to it from Control Panel or anything else I've tried - just see it there in the device list. It reports properly as ST3300831A (Seagate model I bought) but I can't figure out how to actually access and format the drive - no drive letter assigned. Seagate's DiscWizard was no help. Thoughts?