I also can confirm a similar problem. Before I upgraded from Feisty, my dual monitors worked fine. Now when I maximize a window, it spans across both of my crt monitors. The gnome toolbars also span both monitors. I believe I have a nvidia 5200 agp video card. I doubt it will help, but I've attached a copy of my xorg.conf.
** Attachment added: "my xorg.conf file" http://launchpadlibrarian.net/9715743/xorg.conf -- nvidia dual head twinview (pseudo-xinerama): gnome-panel and maximized windows span both heads on first login https://bugs.launchpad.net/bugs/139313 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs