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I recently purchased a Sony 4 GB micro vault flash drive(model #: USM-4GL) and quickly discovered that it would not connect to my computer. When I plug it in, my computers beeps like it would normally but I cannot find my drive in My Computer. I have managed to open the drive on Vista and XP, updated the drivers, and completely formatted the flash drive; leading me to conclude it was likely an error with my OS. I use Windows 7 Ultimate on a 32-bit computer.