Problem reconciling my bank statement - due to GST not being included in some transactions in the MYOB Reconcile Accounts window.

I am trying to reconcile my bank statement.  But a couple of transactions in the Reconcile Accounts window are NOT the amount on my paper bank statement.  Rather, they are the amount, less the GST on that amount.  When I go into the transaction, the total amount is as it should be - as it is on the Bank Statement, but that total amount isn't making it into the Reconcile Accounts window.  What am I missing here???