Hi Rosanne,
Does your bank feed balance to your bank first off?
it could be that you have a transaction in MYOB that has not yet been processed by the bank or a transaction that is post dated any unreconcilled transactions affect your balance in MYOB
If it does then there is an issue with the MYOB file
If it doesn't then the issue is with the bank feed - not sure how you would fix that!
I figure that it is most likely with your myob transactions.
Try this:
Go into reconcile bank and see if there are any unreconciled transactions ( this will change your balance in MYOB)
If there are and they are not genuine transactions or they appear to be duplicated delete them and see if you balance.
If there are no unreconciled amounts you need to try and determine where the error is.
If it is a specific amount do a find on it and see what comes up ( extend your dates to 2099 to pick up any postdated entries)
Doing what you have done - undoing the reconciliation and manually reconcilling is the answer.
I would start with the last statement date prior to losing bank feeds
Keep checking that you balance with the bank statement. When you find the month with the problem undo and reconcile manually
If you don't agree see if you can identify a transaction that matches with the difference and see if it is a duplicate or missing
Hope this helps
Lisa