I ran AP System cheques on Friday. When I tried to print the Cheque Register, I received the following message "Critical Error: [1] Unknown error deleting data set". The register printed ok, the entries seemed to process ok, and the data integrity check showed ok.

Today, the AP System Cheque pre-check listed all of the Friday cheques. I re-ran the pre-check, the Friday cheques disappeared and again, everything seemed to process ok, until I printed the cheque register. Same error message, plus when I closed AP I received this message "List index our of bounds (o)".

Is there something I can correct easily or do I go to a backup and redo several days work? Thanks in advance for your advice.