this is so weird ... WIN95 VFP6 SP5

i produce a report where each instance of the detail band displays
some regular data fields and an image. the full path name of the
image is produced by a UDF that accepts a numeric data field as
a parameter.

for a couple years, this report has been working just fine.

now, out of maybe 200 detail lines, it seems to randomly goof up
on 3 or 4. by goof up, i mean for a given detail line, it displays
image N-2 where N is the numeric data field mentioned above.

the disturbing aspect is ... i can re-run that report, without
changing ANYTHING, and it prints correctly.

i would appreciate any suggestions on what approach to take in
trying to track down something like this.

thanks,