[UbuntuGnome] Cannot Change GTK Theme from default theme - Ubuntu Gnome

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http://ubuntuforums.org – Hi I am experiencing issues in Ubuntu Gnome 13.10. I cannot change the GTK and Window Themes from the default versions. Gnome-Tweak Tool is installedThe themes are located in either /usr/share/themes or.local/share/themesI have the appropriate GTK 3 and 2 theme engines installed When I try to change them in Gnome-Tweak Tool the majority of themes do not appear in the drop down menu, and those that do allow me to change the GTK theme but not the window theme I have tried changing the theme in Dconf Tool however when I do this I experience the following: No window theme appears at allI am una (Hardware)