OK found out what the problem is.Carbonite was interfering with the TomTom program. I just went into my addon's and disconnected Carbonite, back into the game and I was able to adjust anything and all in Tomtom. I then returned to addons,turned Carbonite back on, then back into game and there was my map co-ordinate box (X-Y frames) so all is good.
So it looks as if there is a problem with the two programs working together in this particular area.
Mely is happy