OSX not placing windows of Swing application in a sensible location

[Paul Taylor]

Using 1.7.0_10-ea-b08

I made a change in the code of my Gui application so that instead of 
trying to centre windows myself I let the OS choose where to out it, 
this works okay for Windows, but it doesn't look right to me on OSX.

Windows:

First window displays in the left handcorner, but not right in the corner
Open another window within the application the window is displayed so 
that it overlaps the first window but its top left hand corner is 
slightly down and to the right.

OSX
First window displays right in the top left hand corner
Open another window , displays in exactly the same place completely 
obscuring the first window.


I don't know what the behaviour should be on OSX but this appears incorrect

Paul