>>NONE. :-( The only thing I can think of is that it could be a scoping/datasession issue, but I don't know why Watching it would fix that.

It gets more "interesting". When I Watch ANY whole array, the error´s gone too. Not so if I just Watch one element. What does the high priest conclude? - Ehm, ehm...

>>Maybe you should call Microsoft Product Support, and see if they can help you narrow it down?

I eventually will. "Just" a matter of having the time... and the example...
Thanks
G