Hi Andi,
Thank you for your reply.
Vienna key is inserted, the licences are attached. (See image 01)
The content is installed from DVD-s, folders are assigned. (see image 02)
It worked this way for years. Is it more advantageous to use the Library Downloads for installing even I have the DVDs?
The preset folder (VSL Custom Data) wasn't in the Directory Manager as you can see on image 02, I've added the folder as it on image 03.
The problem still persist even if I try to add instrument from Matrix, but just recognised everything works well in VI, the problems are confined to VI Pro only. (Image 04 and 05)
As I remember the problem occured after trying some of the available tutorial project files.
Thanks for helping!
Regards,
Szabolcs