Account Hierarcy Manager and FSG's

11i Amendments to Hierarchies aren't being reflected in FSG totals

I've ameneded a hierarchy by removing one account and adding another.  Although the Accounts are listed  - the total is incorrect.  As in

Line 12

Range Low          P1066   Range High P1066          Display TTETT

Displays my accounts with correct values

Line 14

Range Low          P1066     Range High P1066      Display TTTTT

Displays the total of my original hierarchy before updates made.

Do I need to run a refresh of some description?

Any and all suggestions greatly appreciated.

Thanks

Catherine