Mark,
Thanks for the advice, it helped in my problem.
I also found something strange here with my CA.
I defined the Datasource in the CA base class and when I was calling the child CA in the forms I never got an value for the Datasource (was allways Null).
As a Class I was expecting some inheritance for the properties defined at the base CA class.
I solved this problem in my app adding a line of code in the CA Builder, where in the INIT method of each CA it defines the Datasource as an propertie of an object that stores the connection handle.

Anyway thanks for the help.

Peter