Save / print XFA form

We are using a lot of XFA forms which we created with Adobe LiveCycle Designer. In our application we sometimes need to print these forms. I'm trying to do this with the aspose.pdf and followed instructions from this page:

http://www.aspose.com/docs/display/pdfnet/Convert+Dynamic+XFA+form+to+Standard+AcroForm 

However, when i save the form as instructed above and retrieve the file it has the page where is says: Please wait... if this message is not eventually replace by... etc etc. 

My code: 

Dim pdfdoc As New Aspose.Pdf.Document(xfa_filename) 

pdfdoc.Form.Type = FormType.Standard 

pdfdoc.Save(new_filename) 

What am i missing? 

Regards, Jacob