1. I am running NetObjects Fusion 15 on Windows 10
  2. I successfully added an XML data source in the Data Source Panel
  3. I created a Layout Region and associated with to the data source using the DS button
  4. I saved the Website, and shut down NetObects
  5. Upon restarting NetObjects and opening the website file...
  6. The Data Source Panel disappeared, and View->More Panels->Data Sources is disabled now for all website files
  7. The Insert Field on the Data Source Tools toolbar is disabled.

I have reinstalled NetObjects, and many other things without a positive result. Everything else seems to work.

Any hints?