Don't worry about the error message, it's been posted before but the developler doesn't seem to care all that much since he's never seen it happen and "we" can't provide a way to reproduce it at will. It's all a big mess and nothing seems to get done.

I've never thought it might have something to do with the save path or auto save or anyting like that. Lately I've been leaning towards the serial terminal beeing tha culprit but I don't know. Did you happen to have the serial terminal running when it crashed for you?

/Henrik.