Thanks for replying to my post. Yes, Virus is there in the system profiler and It works to play my other soft synths. It's Virus Control that says it cannot see my Virus.
Just to make my problem clearer:
Every time I open Logic, I get the message "logic pro is scanning your system for audio
devices [and detected Virus Ti ... do you want to use this device?]
Then Virus control cannot find my Virus. A fresh install of the "Install Virus TI Software.mpkg" cures the problem but only until I next quit and relaunch Logic.
I am having to do a fresh install and mac reboot every time I launch Logic.
Thanks again for taking the time to reply. I'm in a dialogue with Access technical support so hope to get to the bottom of it soon.
Tony