This bug has been a problem since Natty. It still shows up in Precise. If you enable window previews in Gnome Classic and hover your mouse over a window title, the preview will appear. But it will only disappear if you move your mouse horizontally on the taskbar. If you move your mouse vertically over the preview window and into the desktop area, the preview won't disappear.
When using Natty I had enabled a PPA to purposely downgrade Compiz to a version where this wasn't a problem. Very sad to see that it's still a problem a year later :( -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/875420 Title: Compiz windows previews sometimes do not dissapear To manage notifications about this bug go to: https://bugs.launchpad.net/compiz-thumbnail-plugin/+bug/875420/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs