Hi all
Recently I installed version 2.20 build 74, which surprisingly was made simultaneously at the 4 users on my PC.
My PSUD2 installation didn't work on the 3 ordinary users and gave exactly the same error message as Simon in every case (at startup).
But it turned up that PSUD2 worked on the administrator user showing no error message at startup.
Selecting "run as administrator" made the PSUD2 installation work on the 3 ordinary users too.
Duncan mentions the folder:? C:\Users\<yourname>\AppData\Roaming\psud\rectifiers
The cause of the problem is that the mentioned "rectifiers" folder is empty under each of the 3 ordinary users.
The rectifier files is located exclusively under the administrator version of the "rectifiers" folder.
Hans
?