So - it works in preview, but when you open the published form from its published location in filler, it fails? That is odd. Does it fail in both existing and new forms? If you publish your test form and open that in filler, does it fail? What about removing the template from your cache - can you go to InfoPath Filler > New, find the form, right click and select either Get Update or Remove? Still get the error when opening from the published location?
Hilary Stoupa
