Weird Plug-in Problem in S5 - Requiring Authorisation

Hi Punters. I've been happily using 5.0.1 for a while now then realised some weird things going on with a few select plugs:

• PSP Vintage Warmer: If I have 1 file that is using even 1 instance of this and I try to open a new file I get a message saying it Requires Authorisation. Only way to fix this is restart Sonar.
  
• Sonic Foundry Resonant Filter: (Awesome little filter from my old Acid days) Seems to think it's a Demo Version so inserts a noise in every 10 secs. All my Other Sonic Foundry Plugs are working fine.
  

btw, these plugs (like all my kit) are legit registered versions.

Both of these were obviously fine in every version I've had of Sonar (from 2 onwards). But the VST config doesn't do anything because it's the DX versions that are giving me problems. There's no utility to configure your DX plugs .

Any ideas how to sort this? I'd prefer not to have to uninstall/reinstall Sonar as I've had my share of problems getting everything else right with the set-up.