We haven't had your problem.  The only alternative that comes to mind is doing your bank reconciliations manually which could be a real hassle.  If the reason it's off could be determined exactly, perhaps support could come up with a solution.  Have you tried running the Report - Reconciliation - Bank Reconciliation for each month to compare to your bank statements and your book's cash balance for each period to locate when and how the problem started?  It could be something as simple as a bank encoding error where the bank cashed a check for an amount different than the amount at which you printed the check and if no one accounted for this difference, I think you'd have a problem like you're describing.  Good Luck!

Julie - I have run into this and it can be tricky. In some cases, the bank balance is not properly updated when you process some cash-related activity. For example, you might have a system shutdown or power surge right at the point that a check run is posting to the bank. If the system can't update the value on the cash balance it will be wrong. Another possibility I have run into in the past is that the Setup Assistant wasn't run correctly when the account was first set up.

Have you tried running the reconciliation reports in CM? There are two I use pretty frequently:

CM Balance to GL -  this one will test that all entries were posted correctly to the GL cash account. In other words, no GL entries were posted directly without going through CM and no non-check or non-deposit activity posted to the cash account. You need to make sure cash account entries in GL are posted before running this or it will be wrong.

Bank Account Bal Verification - this report may uncover a situation where the entry hit the bank (you can see the transaction in the Register) but the account balance was not updated. This usually happens due to situations I mentioned in the first paragraph. The only fix for this is to manually adjust the balances.

Good luck!