SETLL on a multiple record format Logical file

Hi,
     I need a favour to solve my problem with a search and selection
program using a multiple record format logical file, say FILEA .  It has
two record formats, say for example, RECA and RECB, both keyed. The two
record formats link to two different physical files.(RECA is based on FILE1
and RECB is based on FILE2)

The program is using the logical file name (FILEA) to SETLL and READ,
whenever required, instead of record formats.

The problem is, the program poistions correctly almost all the times but
sometimes it does not  position to the correct record.  Say for example,

if SETLL to JOHN which is in the RECB(FILE2)   - success
then SETLL to "KATHY" RECA(FILE1) - success
then
SETLL  to JOHN again - failure

Now the question is if I do a SETLL with the file name ,which physical file
is it going to access. Does the logical file maintain an access path which
is the combination of both the PFs.

The logic that the program uses is something like this.

C              Z-ADD0    #RRN
C    KEYLIST   SETLLFILEA                95   (Hi Indicator)
   *  Load the subfile....
C              READ FILEA                       95
C    *IN95          DOWEQ*OFF
C    #RRN      ANDLT       10                 (Subfile size)
C***  Load data to subfile fields
C              ADD    1  #RRN
C              WRITESFL01                     (Write to Subfile)
C              READ FILEA                       95
C              ENDDO                     (End of *IN95)

KEYLIST contains the value of the postiion to field.

I do not whether there is a limitation on how SETLL works for multiple
record format logical file.
Thanks in advance.

-Amit



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