Anyone have a possible idea to the following?

FPW26a, WFW3.11

Database are open. All relations set. The user selects the PRINT Button from the main menu. A simple screen opens to prompt (2) buttons appear: "Print current bill", "Print all clean bills".

The use selects "Print current bill". The VALID triggers:

DO PrintBill WITH nChoice

PROCEDURE PrintBill
PARAMETERS nPrintWhat

DO CASE
CASE nPrintWhat = 1 &&print current bill
REPORT FORM invoice FOR NEXT 1 TO PRINT NOCONSOLE

CASE nPrintWhat = 2 &&print all clean bills
REPORT FORM invoice FOR Invoice.Clean TO PRINT NOCONSOLE
ENDCASE

The first choice works great, the current bill is printed and life goes on. The second choice produces an Internal Consistency Error.

Nothing changes in the environment, you can start the app print all and ICE, or you can start the app print the current record (great, fine) then print all and ICE.

All the tags have been deleted and rebuilt why does the same form in the same environment with the same databases crash out?

Open for suggestions! and Thanks
Ricky