Scan path issue - SOLVED

In Sonar Platinum I installed Toontrack's Superior Drummer3.   But when I tried to insert it, an error message came up.  I emailed Toontrack, and they told me to click on the SD3 standalone and find the scan path.  Then go into Sonar, and add that path in the VST plugin.  That, they said, would solve the problem.
 
But when I go into Sonar and try to add the path to my VST plugins, it does not allow me to go to that scan path.   If I go straight to my computer I can find the path with no problems.   But that same path does not show up when I try to find it through Sonar.   Anyway, when I try to load SD3, it will not load because, as Toontrack says, the scan path is wrong.  It was working fine until a day or so ago.
Anybody else ever have this issue at one point or another?
 
Any suggestions?
 
Thanks -
Greg