I bought SanDisk 1gb cruzer flash drive a few months ago and it worked fine on my computer but i recently formated my computers hard drive and reinstalled everything. Now when I insert the flash drive into my computer it instantly restarts. The drive works fine at school so I know it isn't the drive itself. I would like to know what would be causing this. The flash drive has two partitions, a cd partition, and the main drive. When I insert it into my other computer the main part of the drive works but the cd partition says it can't read it. I don't know what it going on.