>>Hi Elyse;
>>
>>>I'm replacing the generic headers with my own header class.
>>>
>>
>>Do it, no problem !! But dont forget if you add a hdr1 object and then rename it to header1 here is the error that you was looking for..
>>
>>
>>CLAUDIO
>
>This is standard procedure and should not cause an error. I am fairly sure that the error is really being caused by something else.

What if your header was not added by some reason (failed Header.Init, for example)? You can check type('this.Hdr1')='O' and not isnull(this.Hdr1) to be sure, it was created.