Thank you for your reply Matthieu.
I am using Windows 7 Ultimate 64-bit, Service pack 1 and Ableton Live Suite 9.6.1 64-bit. I tried Reaper, Studio One 3 and Cakewalk demo versions (all 64 bit) with same results.
This is very frustrating. For years I stood away from soft instruments and ITB. I played CS80 and Mimimoog (not owned) decades ago. That was my dream. I still have Korg Monopoly I bought brand new in 1982. Collection V satisfied 80% of my wishes for vintage synths. After I bought Microbrute last year (and Beatstep Pro and Keystep) I decided to buy Collection V. It was delight. Everything was OK until I upgraded Collection V. Other soft instruments (Softube Modular, Kontakt player, some free plugins) are working without problem.
Excuse my english.
Regards
Drbone