[Gtk-sharp-list] Adding Widgets

[Robert Brown]

I am new to GTK# and I am running into a problem.  I am using the GTK#
Win32 installer from
http://forge.novell.com/modules/xfmod/project/?gtks-inst4win and have
created a Glade# project.  When I run the project without modifying the
code and window that has been created for me, everything works fine.  

But when I add an additional widget to the current window and run the
app I get an exception of type System.NullReferenceException in
gtk-sharp.dll...  What am I doing wrong?

Thanks,
Robert