Woe is me...installed the new OS, renamed selected COD files as I have w/previous OS installs to remove unnecessary items, started upgrade, and at the last step before data is restored, I have a white screen with:

App Error 23
Reset

on it.

:(

I pressed the trackball and the red light came on and it tried to restart again (hour glass)...and the same App Error 523 Reset message appeared again.

On the lighter side, the error message is in such small font that I had to get a magnifying glass to read it...

Oh well, full backup available on the PC, off to wipe and reload land.