Accounting is reporting that when they open AR-A (ISTS Enhancement 09/08/09) they get the error message
 
Information
An internal stack error has occurred.  Please close and restart the application to avoid further errors. Error Code:  too many pops.
OK
 
They close out of the error, exit Evo and then go back in. The error typically does not reoccur in that session.  In this last reported instance, just prior to getting the error the user was in AR-C Record Payments.
 
Val