Undo Bank Reconciliation in Sage Pro 100 ERP

I started to do my bank reconciliation, got interrupted and exited the program.  I was unable to return to it until the next day.  Unfortunately I forgot about being partially done with my reconciliation and accidently reconciled it before it was complete.  Can some one Please tell me how to undo the bank reconciliation so I can redo it correctly from the beginning again?  I am using Sage Pro 100 ERP version 7.7.4 (Build B3700.00) Copyright 2011

Thanks

Petey