Comment 2 for bug 335803

This is probably not a Qt bug - I see this with the title bars of all my windows (Ubuntu-Gnome), which are not always updated correctly. It is best seen in Firefox, where when I switch tabs a few times the title bar often reflects the last tab to be selected, not the current one. It is also noticeable as strange artefacts in the title bars of other applications. Is is most noticeable though in VirtualBox, which is a Qt application and shows this update problems throughout it's selector window.

It also seems to be related to the graphic drivers in use (I am using NVidia proprietary as I need Compiz and Nouveau isn't there yet :( ). Other people have tested VirtualBox with compiz and other video drivers without issues.