The first occurence of the duplicate, or the first row of a series of duplicating rows?
Try posting technical information when requesting it, you've supplied very little information.
Crystal version
Database
Example of existing data
Expected output
No idea if you have groups, etc. so I'll just touch on this using a formula, if you need more help, try postiong more than a short sentence:
whileprintingrecords;
numbervar CntCurr;
If previous({table.field}) = {table.field} then
CntCurr := CntCurr+1
else
CntCurr :=0
Now if the value of this formula is 1 then it's the first duplicate, if it's 0, it's the first of a type, if it's > 1 then it's yet another duplicate.
-k