This removes the invisible vertical scroll, although I'm not sure *why*

it fixed.

mitterlib/ui/ui_pygtk.py

@@ -661,8 +661,8 @@ class Interface(object):
             iter = model.get_iter_first()
             path = model.get_path(iter)
 
-            width = win_width - 70  # 48 = icon size
-            # TODO: Find out where those 12 pixels came from and/or if they
+            width = win_width - 80  # 48 = icon size
+            # TODO: Find out where those 32 pixels came from and/or if they
             # are platform specific.
 
             for renderer in column.get_cell_renderers():