pinnacle PCTV 400e -- astra 2 channel not found

#1
Progdvb 5.12.3 / 5.13.04 finds astra 1 channels easily, but will not find anything on Astra 2, whatever combination of diseq settings I use. It even finds astra 1 when set only to search Astra 2.

The Scan transponder window is also unable to yield any results.

I assume this is a diseq setting problem.

Incidentally, I can obtain both satellites when using Pinnacle Media Center or Nero Home 8 on the same PC or a TV with sat receiver so this is not a signal issue.

Has anyone any thoughts please?