Bank Feed & Bank Account Balance don't match

Hi, 

I have been using sage accounting since setting my business up in Oct last year. Its been a very busy few months so have only just managed to catch up on matching all my bank feed entries, with items in sage, payments, invoices etc. So I have now completed this there are no more transactions to enter, and the 2 bank balances don't match up. There is a £4.60 discrepancy. I have been through all the help topics I can find to no avail. There isn't an opening balance error, and I have been through each transaction from Oct until know and cross-checked each one with the bank statements, and there is no error there. 

I can't for the life of my figure out why there would be a difference.  

Can anyone help!? 

Thanks 

Rich