rosapps freezes at full screen

Created an attachment (id=5887)
debuglog

VBox 4.0.4 running on Ubuntu64 10.10
r50945-dbg

I installed ros and then: ac97, firefox 2.0, ccleaner(last one), freepops(0.2.9).
I'm used to maximize the rosapps window and when i installed ff i changed the resolution(to 1024x768) and i restarted the machine.
When i tried to reopen rosapps(that starts at full screen) it freezed.

Regards,
Mark.

Attachment: debuglog