I can confirm this bug in 12.04. All modal dialogs from applications opened on my primary monitor open on secondary monitor, aligned to the left border.
My setup is: Laptop screen, 1366x768 LCD monitor, 1920x1080 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/954292 Title: "Modal" dialogs do not appear as expected in multiple monitor setup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/954292/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs