Thank you everyone.  I appreciate the help.  This has never happened before when I have upgraded from each of the other previous versions of Sonar.  So I tend to agree with you Jackson...
 

jackson white
thinking it might be more of a BFD issue than Sonar.

 
Thank you Karyn.  I will try it tonight when I get home.
 

Karyn
I would start by putting the .DLL back where you found it and adding the old VST path into the prefs.

 

Hi John,
 
It may be a case that Platinum did not copy your SONAR preferences over when starting for the first time.  Try starting SONAR Plat while holding down the Shift key.
 
It may be easier to include all VST folders in the VST scan paths (Edit|Preferences|File|VST Settings).  The possible problem with moving dlls around is the way the plugin was installed.  Some plugins have execution files which make reference to other folders such as "content" and their location in the Registry.  So, if you move the dll, it is broken from the installed path in the registry.  It might be difficult in locating all VST folders, but most often there are two folders for VST2, your preferred location such as Programs (x86)|Cakewalk|VSTplugins or the ubiquitous Programs (x86)|Steinberg VSTplugins (Steinberg becuase they invented the VST format and is the default for a majority of plugins) or just VSTplugins.  As mentioned above, with the advent of 64bit plugins and VST3, there are still additional folders to locate under the "Programs" (without the "(x86)") folder for 64bit systems.
 
The above provides ancillary info for those whom may not be aware.
 
Kind regards,
 
tecknot

I don't see how this be a BFD2 problem?
 
The only change has been sonarX3 to platinum and NOT BFD2 so surely that rules BFD2 out of the equation?
 
If BFD2 were the problem than you may well be screwed as BFD2 is no longer in development and there will be no further updates.
It does sound like your settings weren't transferred but if that hasn't work you could always reinstall BFD2.
 
 
Steve