thanks brundlefly... but no..it was a new project and I tried creating other projects as well, all having the same result.
 
Now I'm having another similar problem but I'll make a new post about this new problem.

Strange. Maybe time to subscribe to SONAR 2015 while it's on sale. 

Problem Solved
 
It has to do with Screensets.
 
Keeping the Track View configurations must be done by saving them as a Screenset. Once you save it as a Screenset and then save the project, it will open again with that screenset.
 
Also, Screensets can not be saved as a template and will have to be re-created each time you start a new project. However you can import screensets from previous projects.
 
So now problem #1 and problem #2 have both been solved.
 
Thanks everyone.
Pete

Peter Rabbit
...Screensets can not be saved as a template and will have to be re-created each time you start a new project...

 
But you can save screensets within a project template.

Peter Rabbit
...I can now see that Track templates, Project templates etc. are also stored in that Content folder. Even though I mapped the paths in Sonar's file locations to the correct drive and folder I think that having those files on a separate hard drive may be causing problems...

 
This shouldn't be an issue, unless there is a problem with the drive. I've been keeping these files & folders away from the system drive for years.

FYI - Having Cakewalk Content on drive E should NOT be a problem.  I had mine on D for X3 and now Platinum with no problems whatsoever.