Hi MaryAnn,

Thank you so much for your help! Unfortunately none of these suggestions resolved the issue, but it DID get me thinking further about it and while I still don't have a clue to WHY it happened, I've resolved the issue.

We always use basic Intuit form for whatever it is we're doing, customized with our name, address, etc. and logo. Never had a problem. But your suggestions made me test it by using the program's stock Purchase Order template and it worked! Somehow that one template was corrupted. I wish I'd figured it out before I spent all this time banging my head against a wall...

In any event, I always get useful information from the QuickBooks Community and I really appreciate everyone's efforts to help.