I've found other posts on the 'net where people have this problem but, unfortunately, I haven't found the solution posted yet. Ack!

Omnisphere is completely installed by it's own script. (quad core Mac, Snow Leopard) No errors and all seems to be OK and located in the proper places (per Omnisphere), but it doesn't show up in the plug ins.

Any hints or help would be very, very much appreciated.

(And I promise to post the solution if I find it another way.)

Thanks.

ps: Still waiting for a reply from Spectrasonics.