Crystal report variable problem

[hog]

I have a report that is sent straight to a printer to produce three copies. I need each page to be identified with a letter A, B or C.

 

I cannot seem to get a formula to keep track of the copy being printed thus they all come out labelled A.

 

I have tried using a public variable from an outside module but the error checker complains it does not know this variable!

 

Any ideas????

 

Ta