webbrowser control deactivating the form

Scenario:
I have an active Form.
I dynamically add a UserControl (1) to the Form.
I dynamically add a UserControl (2) containing a WebBrowser to the
existing UserControl (1).
Form loses focus = SIP icon disappears and title says "Start"

I can progmatically hack around this by forcing the Form to activate,
hiding and showing the ToolBar using the Windows API, and re-assigning
the Form's mainmenu...

However, I'd like a much better solution.

Ideas?

I know it's the WebBrowser control because this happens right after
new WebBrowser in the designer code.