Beginning Balance After Eliminating Previous Reconciliations

Hello:

Our customer made a mistake a while back, in Bank Reconciliation within SAP Business One 9.3 PL06.

So, he cancelled all of the reconciliations to start over. But, when he tried to conduct the first reconciliation, Business One indicates that there is a starting balance.

But, this should actually be $0.00.

How can this be fixed, so that the starting balance indeed is $0.00?

Thank you!

John