J2SE Version (please include all output from java -version flag):
java version "1.7.0_06-ea"
Java(TM) SE Runtime Environment (build 1.7.0_06-ea-b07)
Java HotSpot(TM) 64-Bit Server VM (build 23.0-b21, mixed mode)

Does this problem occur on J2SE 6ux or 7ux? Yes / No (pick one)
N/A

Operating System Configuration Information (be specific):
Macbook Pro with Lion

Hardware Configuration Information (be specific):
Macbook Pro with Lion (10.7.3)
17 inch monitor @ 1920 X 1200
Intel Corei7
8G Memory

1080p Asus monitor connected from the display port via an RGB adapter
Extra monitor is on the right as extends the desktop (not cloned)

Bug Description:
Popup menus do not work when window is on secondary monitor


Steps to Reproduce (be specific):
We can reproduce this with our swing app. However, this is not necessary since it seems to happen in other apps as well.
> Open a terminal
> javaws -viewer
> Drag the java cache viewer window to secondary monitor
> Pick on the combo box (by the "Show" label)
> No popup appears.
> Drag to primary monitor, everything works fine
> Drag back to secondary, popup will not show again.

Apparently, using the arrow keys does allow selection, but at no time does the popup appear.