Mail Reset itself and delete signatures etc

Hi

I am using ML. The mail is playing with me... this is flustrating now...

It resets itself somehow...

My mails OK, everything works. But everytime I made signatures they will be dissapear soon.

Also the order of the accounts that I made in the left panel will be resets alphabetical order...

I don't know why these thing happens and even when they happenes. It's not after restart or something. Even if I don't swich off the macbook this is happening.

If someone has same problem and know the solution now please let me know.

Or let me know if it is a BUG or something and I/we need to wait for a upgrade from apple.

Too much problem is coming up newadays from Apple. I don't expect these from Apple.

Thank you so much.