You could run a Memory Diagnose to see if the Dimm is OK, and reset all settings (Initialize).
Those are both found by pressing System and then F5
And you could format the hard drive by pressing DISK/USB -> F2 -> FORMAT
Ofcourse you need to re-install all MV patches/demos after that.
Reinstalling the firmware will probably not work because the MV will notice that it is the same version (if you are already up to date).
Finally you can
'Try running the MV's diagnostic mode/test mode . Press MENU+F3 while powering on. Use the Device Auto check and it will run a RAM check and other stuff etc etc.'
(I found this at You are not allowed to view links.
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