Collaborator GUI Crash - Ubuntu 12.04 - Gtk-ERROR **: GTK+ 2.x symbols detected. Using GTK+ 2.x and

Collaborator GUI crashes when trying to set up a review.     (java:25054): Gtk-WARNING **: Theme parsing error: a11y.css:408:23: 'px' is not a valid color name (java:25054): Gtk-WARNING **: Theme...