It happens because: "in gladelib for gnome 2.20 the widget disappars from 'widgets' when you unparrent it." (upstream developer) It is fixed in the latest svn version, revision 564. Could the ubuntu package be updated to this version??
It happens because: "in gladelib for gnome 2.20 the widget disappars from 'widgets' when you unparrent it." (upstream developer) It is fixed in the latest svn version, revision 564. Could the ubuntu package be updated to this version??