My Kodak DCS 520 is sick. It keeps crashing - loses the time setting and locks up. The lockup resolves when I turn off the camera and then wait 1 minute until the camera timeout also shuts down the analog part (i.e., the part that is the EOS 1N). Then I can turn it back on, set the time, and continue shooting. Recently, though, I even had constant crashes during a walk with the camera - so far I haven't figured out exactly when it happens. The normal crashes only occur when I change the battery. If anyone else has such a camera and knows these symptoms, please let me know. PPS Hamburg has already threatened me with horrendous repair costs due to a mainboard defect, but maybe someone else knows something more about it.
Fortunately, I still have a purely mechanical Leica M, where the battery is only used for the exposure meter, so it works fine without power too. And it has no mainboard.