Version: (using KDE 4.2.0) Compiler: gcc version 4.3.2 (Ubuntu 4.3.2-1ubuntu12) OS: Linux Installed from: Ubuntu Packages In Appearance System Settings->GTK Styles and Fonts If I select "Use my KDE style in GTK applications" the Thunderbird scrollbars are corrupted. The slider disappears when I move the mouse cursor on them. At the bottom of the same page there is "Firefox and Thunderbird", Install scrollbar fix button. It claims that "Your Mozilla profile was updated sucessfully..." but it does not seem to help. (Btw. notice the typo, it should read *successfully* in the message box). My Firefox scrollbars have always been fine, just Thunderbird is experiencing problems. It seems impossible to select the Qt4 style, the Apply button at the bottom would stay grayed out. Selecting "Use another style: Qt4" -> Use my KDE style.. -> Use another style: Qt4 again the Apply becomes enabled, but it is a no-op. Selecting apply, closing the dialog and reopening will again show Use my KDE style selected. Use another style "Raleigh" seems to be the only one that actually works for me, even if I don't like the looks of it next to my KDE apps. This is on Kubuntu 8.10 amd64, with KDE 4.2.0
The gtk-qt-engine is not part of official KDE. You should report this behaviour to its maintainer at http://gtk-qt.ecs.soton.ac.uk/ Thanks