JFrame loses focus in Java 1.4

Hi,
I am running on Win2k.
I have two frames open. One has focus (a) and one does not (b). When I move my mouse from (a) over (b), frame (b) "focuses" as if I clicked my mouse in the frame.
It behaves kind of like some UNIX window managers do where you can cause a window to get focus just by moving your mouse over it (e.g. in window you have to "click" in the window to cause it to get focus).
Any help would be greatly appreciated.
Rob

I have noticed exactly the same behaviour in my
applicationm which I just happened to have rolled out
to a customer. it's infuriating. Did you find an
answer to this? if so please let me know.
Hmm, can't reproduce it (win2k and jdk1.4.2) - could you post a small example demonstrating the problem?
Greetings
Jeanette

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