Greetings!
Hmm... AC Power. That eliminates the car... Advancing the info mode, or next info mode triggers a reboot? Strange. You have reflashed the unit with a new kernel, right? Do you have hijack on it currently? You might want to test to see if the kernel is reading any IR or other inputs. For the info mode to advance, it has to be (or think it is) seeing inputs... Also, have you done any syncs or fscks since the accident? Maybe the filesystem needs a cleaning.
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Paul Grzelak
200GB with 48MB RAM, Illuminated Buttons and Digital Outputs