Haha, I know that feller from somewhere, Jim - could it be he lives in northern England?

When your TrackIR stops working, try this: press "Pause", then unplug and replug TrackIR.
In most cases that worked for me.

Vice-President of the BOC (Barmy OFFers Club)
Member of the 'Albatros Aviators Club' - "We know how to die with Style!"