FullText Search error

While using the fulltext search in a Lotus Notes DB. I am searching for a field to contain a value. If I physically look for this value I find documents, however I do not if I use the fulltext search.

If I use the following in the fulltext search:

field InternalID_n is equal to 400343

I get no results at all, yet I can physically scroll down the view and see documents that I am looking for.

Now if I use:

field ConsumerID is equal to 400343

I get results, 115 fields (yes both fields each have the same value)

I did a property comparison and the fields are exactly the same except for the name of the fields

I have ripped out the fulltext index and rebuilt it 3 times just to rule it out as being the problem

the requirements state that I have to use InternalID_n

No I did not develop this app but have been charged with adding to it.

can anyone give me a clue why InternalID_n fails, yet ConsumerID works

Is it possible that somewhere in the life of Lotus Notes, InternalID_n is a reserved word in one way or another?

Subject: Related to UNK?

Try: make a new copy of the database, copy a few documents over, full text index it and try again.