You can't print a check; a message says the transaction is unbalanced
Before you can record and print a check, the payment amount must be fully allocated. That is, the total amount of the check (as shown in the check image at the top of the window) must be assigned to the purchases that are being paid. For example, if you're paying your telephone bill, locate the bill you entered for the telephone company and click in the Amount Applied column to apply your payment to that bill. Payments can be split between two or more bills.
When the check amount is fully allocated, the Out of Balance amount near the bottom of the window will be $0.00, and you'll be able to record and print the check.