Just been able to reproduce this in Edgy. The preview of the screenshot works fine, only after i press "Save" the program crashes. As a result the screenshot is saved as it should be, except the video output area of VLC is in bright blue.
The type of the movie (codec, extension) made no change to the behaviour. Bug Buddy catched the crash and left me the attached file, no further bug reports found. ** Attachment added: "Crash report" http://librarian.launchpad.net/6988966/gnome-panel-screenshot-bugreport.txt -- when i have running vlc media pleer, gnome-screenshot crushed on start https://launchpad.net/bugs/96448 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs