I am opening 2 command prompts. I am running SwingSet2 demo on one of them using 6uN-b06 PIT build. Once the swingset2 frame is opened, I am launching a fullscreen application on the other command prompt. I am ALT + Tabing the FS application a few times. After this, I have noticed that the swingset2 is frozen (atleast the UI). It never comes back even If I kill the FS application. I have to re-start the swingset2.

Basically I noticed it when I was running a FS application with my bugster window open. Bugster was frozen and I have to restart it. This is noticed only on the current PIT build - b06. This is not reproducible in any of the other releases. I reproduced it on WinXP Prof with Nvidia GeForce 7600 GS (latest driver).

To reproduce the bug, run SwingSet2 or bugster. Once the window comes up, run the attached FS application (BouncingBalls). if the swing application's UI freezes, the bug is reproduced.