Virus C drivers for Mac??

As far as I know, the C doesn't have drivers per se - the OS comes as SysEx in MIDI, and I'm guessing everything else is just utilities, of which what you probably really need is a SysEx librarian, something like this: http://www.snoize.com/SysExLibrarian/

Have you got a TI & a C?

Now you could try programming that sound from your other thread & importing that into your TI to see if the displayed settings are different.

I think they're probably referring to the Sound Diver application, this will only work on very old operating systems, Windows XP kinda era I believe. If you email Access Support they should be able to provide you with a copy as long as you've got an old OS installed