I've experienced a strange issue:

While i haved just closed eJukebox, it start again itself! and after that i haved 2 eJukebox at the same time on my screen, but none worked properly... I haved also the warning box "Database optimisation complete!"

Now eJ run again normally, i don't know what haved caused this bug?
If ever i can reproduce it, i will keep you informed.

...

...

Try checking the option "Hide this notice..." on the database optimisation complete dialog that comes up after you shut down eJukebox...Then Click OK.

Shutdown any other open copies of eJukebox...then re-start eJukebox.