Strange menubar problem

[Peter Haworth]

I've set up the standard app/file/edit/help menus to be displayed in  
the OSX menu bar of my app.  The menubars property is correctly set to  
the name of the group containing the menu definitions and the  
editMenus property is set to false.  The menus appear correctly in the  
OSX menu bar.

However, every time I run my app, the main stack window grows in  
height by a few pixels added to the bottom of the window.  This is a  
cumulative effect so each time the app runs, the the main stack window  
gets progressively taller.  If I manually resize the main stack window  
then rerun my app, it appears with the height as it was before I  
manually resized it.

I can't find any scripts that would affect the size of the main stack  
window.  The main stack is displayed as a pallette.  I'm running rev  
4.0 on OSX 10.5.
Any clues?

Pete Haworth