One useful thing to do would be:
- Delete startup_sequence.txt from My Documents
- Start the DMS Hack Tools with the 'faulty' drive active in the cradle
- Close the tools
...and then paste the contents of startup_sequence.txt
There might be a clue there as to what's going on, as that is the initial WMI snapshot that occurs to determine the devices to show in the dropdown. Not sure if it's posted in the WMI cycle part of the logs or not. (Don't have anything to hand to check)
IIRC, although I'll need to check it out tomorrow, the DISK ID is stored as per the selection in the dropdown and so any WMI query is performed against that specific disk ID. The WMI cycle is actually checking for the existence of more than 1 partition. I can't remember if it's explicitly 2, or more than two partitions. I have seen instances before the tools were complete of DMS drives ending up with 3 partitions and perhaps I haven't coped with something like this and perhaps your WMI snapshot is reporting 3 partitions for the DMS.
Again, I can't really clarify this until I see the log.