--- a/frontends/primitivus/custom_widgets.py	Thu Jul 01 18:52:51 2010 +0800
+++ b/frontends/primitivus/custom_widgets.py	Sat Jul 03 12:01:01 2010 +0800
@@ -118,7 +118,7 @@
         try:
             self.content.remove(value)
         except ValueError:
-            pass
+            raise ValuError("%s ==> %s" %  (str(value),str(self.content)))
 
     def getValue(self):
         """Convenience method to get the value selected as a string in single mode, or None"""
@@ -140,7 +140,7 @@
         self.content[:] = widgets
         if self.single and new_values:
             self.content[0].setState(True)
-        display_widget = urwid.BoxAdapter(self.list_box, min(len(new_values),5))
+        display_widget = urwid.BoxAdapter(self.list_box, min(len(new_values),5) or 1)
         urwid.WidgetWrap.__init__(self, display_widget)
         
     def selectValue(self, value):