How Do I Multi-Thread?

[5te4lthX]

I have a GUI that calls a module's Sub Main(), which contains a System.Threading.Thread.Sleep. While the thread is sleeping, the GUI is unresponsive. Is there a way to have the module sleep, but keep the GUI responsive? Any help would be greatly appreciated.

UPDATE:
I found some code on the internet for multi-threading, and I used it in my program. However, there is a problem. The module is supposed to appendText to a richTextBox in my GUI, but it's not. Any ideas why?

This is the code I used

Dim oThread As System.Threading.Thread
        oThread = New Thread(AddressOf Console.Main)
        oThread.Start()

Any help would be greatly appreciated.