"Failed to Insert" Garritan Orchestra - HELP!

Hi Guys, 

Newbie here who has gotten great help from you guys in the past.

I just installed Garritan Personal Orchestra and installed it in my VST folder where SONAR X1 draws VSTs from, but when I try to add it, I get:

Failed to insert synth.
The synth may not be properly installed.


I know this is a broad question, but anyone have a clue why?  I can bring up the program as a standalone, no problem, and it works fine.  But SONAR says it's may not be installed properly.

Any ideas?
Thanks a lot,
Mud