MIDI delay Isue

Funny I posted this question in the x1 forum last night thinking I'd have more people see it. 12 hrs, 45 veiws and 0 answers.
 
It's been so long since I have had this problem that I cannot seem to figure it out.
 
It's that old "hit the note and hear it 30 ms later" issue.
The facts:
These are all projects that started life as Sonar 7 32 Bit. 16 audio tracks live band.
I had opened them in X1 demo and did a little editing and at that point all efxs got updated to 64 bit.
X1 is where the MIDI tracks and synths were inserted.
I'm adding some keyboard parts and am using a few basic plugs.
TTs-1 -  True Pianos -Mr Tramp -  Session drummer ( kick replacment )
 
The x1 demo is over so I opened these in P8.5 64 bit to resume work on MIDI parts.
That's when I noticed the delay.
I can open a fresh project and there is no delay, as I said I havn't had this happen for over 2 years now. I've always thought this issue was due to drivers.
 
Is it possible that there is this huge differance made when you go backwards from X1?
 
I have the originals of course as back ups and can open them from there, But there is a loss of work If I do that.  
 
WHat is the fix for MIDI delay. I'm not one to ever mess with buffers.
 

I'm not sure what PCD is but I'll look it up and see.

This latency is only in the MIDI input. The soft synths are receiving the data at least 30ms late. WHich is the same as the audio RTL.

I've been digging though old threads and the topic came up dozens of times, but the answer was always a driver issue or forgetting to switch input monitoring.
I think I have found the problem , but not sure why it happens.
Normally the reported roundtrip latency is 12ms.
When I load these projects this jumps to 30 ms.
If I close Sonar and open it goes back to 12ms.
Also I didn't think that RTL had any effect on MIDI. The way Sonar automatically compensates when you record audio or MIDI should deal with this. Is this what is broken?

One thing that I find strange is that toggling input monitor makes no difference.   
  What I think is happening is there is a difference in how each version of Sonar handles this. It is not a good idea to go backwards in versions. Thank goodness it's only a couple of projects.