Hi Scotty,
The terrain.cfg question was just a guess since if the 40 entries for TFX are missing or are misnumbered they outcome is usually landclass over water. However, we probably should just put a hold on guessing until you get back to a PC.
As Steve mentioned, once you get back to a PC, you should check to see if any other TFX areas have landclass covering water problems...e.g. PAPG or PASI area etc.
Rod