I have the exact same issue with taking screenshots in Jaunty with multiple monitors, and I have found a workaround. If I align the top edge of all my monitors, the black bar no longer appears in screenshots of a window or an area of the screen.
I have also opened this bug in gnome's bugtracker. http://bugzilla.gnome.org/show_bug.cgi?id=587101 ** Bug watch added: GNOME Bug Tracker #587101 http://bugzilla.gnome.org/show_bug.cgi?id=587101 ** Attachment added: "Bad screenshot with monitors aligned at bottom" http://launchpadlibrarian.net/28448548/bad_screenshot_with_monitors_aligned_at_bottom.png -- Ubuntu 9.04 gnome-screenshot (Alt-Printscreen) black/blanks out top of windows in multi monitor xinerama https://bugs.launchpad.net/bugs/379382 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs