Help please,

I am almost positive my Sage50 bank reconciliation has glitched in some way. I attempted to reconcile the account with my bank statement - everything matches up.

I have the correct:
statement start date;
statement end date;
statement end balance;
deposit amounts;
withdrawal amounts;

and I have triple checked the bank statement and general ledger and I have no discrepancy amounts.

However, when first attempting to reconcile the account I had an unresolved amount of $5932.50. This is the amount of a cheque that has been deposited (once) both in Sage and by the bank, and has been clicked as cleared. 

Unable to solve the problem, the bank reconciliation was saved uncompleted, and not submitted. 

The second attempt to reconcile the account, all transactions were uncleared and labeled outstanding, to start the process from scratch, and one by one the transactions were cleared.

Still with no discrepancy amounts, my unresolved is now $11,865.00 - exactly double the original. 

Checking my reports again, I see the cheque of $5932.50 was indeed only been deposited once.

I cannot seem to delete the saved version of the bank-reconciliation-in-process, so I am hoping I can reconcile while incorrect, then delete the completed incorrect reconciliation (thereby erasing the glitchy save) and then try to reconcile all over again. Can someone please tell me how to delete a bank reconciliation. 

This is all I have found:www.bing.com/.../search
but as it is for SAGE UK, it DOES NOT work for my system.

Please, your help is very much appreciated!

(FYI: there is not a current back-up to refer to, so this option is unavailable.)