>Could you give me a bit more detail on how to set a breakpoint in mmTextBox.StateChangeHandler() as you have suggested? Perhaps a simple example.

1. Open your solution in Visual Studio
   
   
2. In the Visual Studio toolbar, click the Open File button.
   
   
3. In the Open File dialog navigate to the Program Files\Mere Mortals Framework 2003\Mere Mortals Framework Windows Forms\Controls, select the mmTextBox.cs file and click Open.
   
   
4. Set a breakpoint in the StateChangeHandler() method, then run your application. Even though you don't have the MM .NET project open in your solution, Visual Studio will still hit your breakpoint.

Regards,