RouteConverter and Mac OS X

[routeconverter]

Menu:
- When clicking on a menu, and then switching to another application, the expanded menu stays floating on top of everything. When going back to Routeconverter and closing the menu by clicking it again, it is closed and removed.
- When opening a menu option, and then dragging the application by it's top window bar, the opened menu doesn't move with the application but "stays behind". The menu options still function though.
Application:
- Sometimes the Application stays the front-most application even when switching to another application. This other application does have the working focus but stays behind the RouteConverter screen. I do not know yet when this exactly happens. I will try to track that down.

Quite frankly: I don't know how to solve these problems from within the application. They seem to be issues of the Java VM on Mac OS X.