Not sure this will help at all, but some time ago I discovered that the Fiscal Period Start date in the hidden Fiscal Year Detail tab is actually a calculated field, rather than pulled from the Fiscal Year Table in Sage 100. You can see this if you go back to Source container that creates the Fiscal Year Detail tab. It has a problem when you are not using non-calendar end dates (ie: 4-4-5 quarters). While this will cause problems with any formulas that might use that field (ie titles, etc) I did not find that it caused the Period Balances to be wrong as they come straight from the PeriodPostingHistory table so they should still be correct.