how to select the start for rubber band

I am trying to use the rubberband class.
Normally this would be done from a tool on the map, but due to the request this has to be from a menu option and not the tool bar options, When I then use
IGeometry geometry = rubberBand.TrackNew(screenDisplay, symbol);

the first point is taken from where the menu was.
Is there someway to wait till the user clicks inside the map before starting the rubber band but without using the toolbar control.

Paul Cole