When going to the Activity tab on a client, the Total account balance is different then when you click on "summary" and look at the balance.
We are currently evaluating this issue and will update this article when we have more information.
Steps to Duplicate
1. Go to Account Receivable 2. To go records > clients 3. Open the client record and select the activity tab 4. Take note of the Total account balance listed there 5. Select "Summary" look at the balance there - this is different than the total account balance