Simmulating Mouse Clicks?

Greetings,
Here's the scenario - I have a small user form floating above a Excel Worksheet. The user clicks a command button, and I need some code or a method to shift focus, from the button just clicked, back to the Active Worksheet - just as if the user clicked the worksheet itself with the mouse. I've tried making a cell Active or Select, neither does what I need. Any ideas?
Thanks,
Ken

Never mind - I found another way to accomplish what I was trying to do.
Thanks,
Ken