4) => a few days ago, another user has reported this bug, and I've been able to reproduce and fix it. Tomorrow, a new version will be released with this bug fixed.
1), 2) and 3) => thank you very much for your feedback. For the moment, I haven't noticed those problems myself, but I'll try to reproduce them.
What would be great is if you could find a procedure to reproduce a bug every time.
I have used All My Movies for my movie database and find that this program is much more useful to me at least.