I had a thought- maybe this is an ownership issue?
I don't have a lot of experience in using it, but there is a command-line utility, DISKPART, that could possibly be used, that may help to either give the drive a letter or actually give a reason why it can't.
Now, bear in mind diskpart is a very powerful program, even more so then fdisk, but here is something you could try.
1. start diskpart. Start->Run, diskpart
2. now, diskpart works in a freaky way, but our first plan of action is to find the right disk. type "list disk". try to determine which of these disks is your renegade drive. From your screenshots, I'd guess "disk 8".
3. armed with the disk to use, type "select disk 8". The disk should now be "selected". Now we need to determine once and for all exactly what partitions are present. type "list partition", a list should appear.
4. Now, I will assume that you have a single partition on it, but I'm sure you can figure out how to repeat the steps for additional partitions.
5. type "select partition 1"
partition 1 should now be active.
6. now the kicker, we try to assign a letter to the drive. when I tested on my computer, it changed the letter to something different, and I wasn't really given an option as to what letter. In any case, it's a simple command: just type "assign".
oh yeah, and exit quits.
if you follow those instructions, do be careful, I don't want to vend information that causes somebody to lose data. Pretty much just stay away from any "delete" type commands, and you should be fine.