Invoker method problem

This worked in beta1:

Public sub UpdateMSL()
Try
Dim mi as MethodInvoker = New MethodInvoker(AddressOf UpdateMainStatusDisplay)
gui.BeginInvoke(mi)
catch....
End Try

Getting a "NullReferenceException" error pointing to "(mi)" on the gui... line
"UpdateMain..." is a public sub on the main window on the program

This sub is in a class which run ina separate thread from the main form. It job to call the public prgram to display information on the main form while the sub thread is running.

Most thankfull on any help on this.

[567 byte] By [jlcjlee] at [2008-1-23]