I'm getting an error on a form I'm currently working on. It's made up of two business objects.

shopobj
ShopEnvironment
1st view: v_shop
Primary Index on shop table: num
goalobj
GoalEnvironment
1st view: v_goals
Index on goal table: num - tables are linked on indexes

Form based on: cbizobjmaintenanceform
Shopobj is on first page of form:
Goalobj is on third page.

Both have lautoprimarybizobj set to .T.
cuniqueid field is set to: num

The first two pages work OK. When the third page is activated I get a:

Error# 1734,
Property LCHANGEFORMTITLE is not found, line 38
Code: IF This.oBizObj.lChangeFormTitle AND llFormIsPresent
Method:afterrowcolchange
Object:shoplistform1.pgfbizobj.page3.cgridlist1

I've been looking at the Project Mgt. sample (the Projects form) which looks very similar to what I'm trying to do. As far as I can tell, my objects are set-up correctly - but since there are so many places where things can be set I might have missed something.