I have 2 external hard drives. Both are 2 TB and I connect them with Firewire 800.
I boot Windows 7 in Boot Camp on MacBook Pro so I have 2 partitions on my hard drive. One is my Windows partition which is C:, and the other is my Macintosh partition which is supposed to be D:.
But whenever I boot in Windows 7 with my 2 external hard drives plugged in, one of the external hard drive's partition takes up the D: letter no matter how many times I go to Disk Management and change my Mac partition back to D:.
I don't really care what letters my external hard drives are. But I really want my Mac partition to always be D:, otherwise a lot of my shortcuts won't work.
EDIT: For now I just changed my Mac drive to B. It took a while to fix all the shortcuts but now whenever an external drive gets plugged in, it gets assigned from C and later.