Document not saving data

Hi,

as I already mentioned here:

http://forums.adobe.com/thread/432254?tstart=0

  I hope somebody here will know. The form is not saving it´s data  in the process. I fill the form in the Assign task in the Workspace, but after submitting it, it´s empty.

I am exporting the log, but the (correct from the schema) xml is empty (no data). Data connection is ok.

Thanks for ANYsuggestions.

Lukas