Suddenly my N900, PR1.2, doesn't read any more own video files (recorded with its own camcorder) - outputs the unsupported format notification. After rebooting, happens that the first video plays for half a second then freezes, then no video can be played because every file is told to be unsupported.
And the camcorder doesn't work any more, too. When started, it crashes immediately.
Dmesg shows several "dspbridge: timed out waiting for mailbox".

Is there anything I can do to debug, before I get home and eventually try to reflash?

Thanks for help.


EDIT: rebooting - even several times - didn't help.
After installing the extra codecs package - which I had never installed before by the way, the normal functionality seems restored.
So, I am suspecting a corruption of system files.
I'll reflash anyway

EDIT2: after reflashing, and before reinstalling anything, videos are played ok and also the camcorder works. It was patently a case of system files corruption.
Now I hope that after restoring my backup it still works allright.