Hi,
I recently updated to the latest version of Sonar Platinum.   I also needed to get a new computer that could handle the memory and CPU requirements.   I transfer all my old audio files and projects to the new computer.  I also installed my old plugins and synths from my old computer.   The problem I am having is when I load my old projects it can't seem to find certain synths and plugins, even though I moved the .dll files to the appropriate folders.
 
The synth/plugins I seem to be having the biggest trouble with are:
1) Addictive Drums.  can find the new version, but won't load the old version.   Can I have 2 version of Addictive Drums in the save VSTPLUGIN Folder.
2) Breverb - Again loads new version, can't identify old version.
3) Melodyne - All my Melodyne tracks are greyed and won't play.
 
Any and all help would be greatly appreciated.  I spent so much time mixing these projects, I don't want to have to redo it all with new plugins and synths. 
 
Thank You

Did you do a full reset and then a full scan of your plugins?
 
That doesn't take but a few minutes, and sometimes has fixed that sort of thing. (If memory serves)
 
Bob Bone

Yeah...did that multiple times....even made sure all the right folders were in the scan....didn't help