HITB Help

I'm a new user and don't know GP very well at all.  I'm trying to run the HITB tool and have reached Step 5 "Create GL transactions and HITB records".  When I hit the Create Batch button, it tells me "There are still accounts with non-zero balances, please clear these accounts before continuing".  Can someone point me in the right direction to find and clear these accounts up?

We are using GP 2010.

Thanks,