GLADE and PyGTK GtkTextView unable to edit/type

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http://ubuntuforums.org – I've created a window following a tutorial via Glade and PyGTK; but when I click in the box to edit it, no cursor shows up and when typing nothing shows up either. Yet I can paste text into it, here's the Glade file as well as the python file: Code: <?xml version="1.0" encoding="UTF-8"?> <interface>   <!-- interface-requires gtk+ 3.0 -->   <object class="GtkTextBuffer" id="textbuffer1"/>   <object class="GtkWindow" id="window1">     <property name="can_focus&q (Hardware)