Problem with reading a file that does have keys

I want to read a keyed file from top to bottom. i.e. I am finding that I
seem to read some records more than once.

is there anything on the F specs I could be overlooking?
I put a counter in for the read and I get the right number of times through
the read routine.

Doing a "DOU NOT %EOF(filename)
Then an EXSR X1 to the read routine where the read on the file is
BEGSR x1
READ FILENAME;
endsr

I put an if statement in after the read looking against one of the account
numbers that is only in the file being read from once. But I get SEVEN or
more hits in the IF statement checking against that one account number.

Thomas Burrows