Missing ILS Freq

Greetings,I did search the library for this topic but seem to either miss it or not find it, so here it goes.... WHat would cause an airport with 4 ILS runways to have only 1 listed when you are given an approach from ATC? I opened up the AF2 and the ILS Freq are listed, but in the FS9 map view only 1. This is a generic question, it has happened several times with several add-on airports or udated AFCAD's. I do use the "place all AFCAD's in one folder routine", and have scanned for dups. I also use FSC v8 and it will only show what FS9 shows. Is this a layering issue or a bad afcad?PaxBrad