I actually have been having issues with my MD, where it would sometimes work, and sometimes just not boot up at all, showing a blank screen with garbled characters.
So, I decided to take it apart this weekend just to see if there was anything obviously wrong with it. In doing so, I tried removing the battery and powering it up, just to see what would happen. Lo and behold, it worked. It displayed the “low battery” message, then loaded the default factory set and worked like a charm. So, I popped the battery back in, powered it up, and loaded up a saved snapshot. Everything now seems to be working fine (touch wood).
So, I wonder if this is an issue with older units where the battery is just on the verge of starting to die and the OS gets confused. Or, it could very well be a hardware flaw. I also noticed some white caked-on deposits along the bottom of the top circuit board. Possibly due to humidity, but none of the other boards have the same deposits, so I’m not sure about that. Cleaned it all up anyway just to be safe.
So, hope that helps. I recommend trying that and seeing what happens. If you choose to wait for support to get back to you, you’ll be waiting a long time. My ticket’s been open for 2 full weeks now without an answer…
Good luck!