I have owned TrackIR5 for about a year now but never had the time or patience to get it working and use it. I now have so purchased the TrackClip Pro which I have found to be much better than the clip that comes with it. I use TrackIR for Flight Simulator X but have come across a problem which means i'm constantly using the centre button. Hopefully the images below explain.
Starting position from centre:

Look down to:

Look back up:

As you can see, there is a massive difference between the first and third images. For some reason the view just won't return to the 'over the top' view that I have in the first image. Any ideas? Thanks.