So far I have had crashes each time I've use Dimension Pro. I get whiteout when I select an instrument or a hang tone. This has never happened before.

You may want to uninstall and reinstall Dim Pro.  Are you running antivirus software?  Could be getting in the way.
 
Glen
 
 
BTW: I love your Holiday Jam.  Great guitar!

I exited Sonar then came back in and now everything seems to be fine. Cambridge is all green so that's a good sign!
 
Thanks Glen, I love that guitar. The classical I mean. The one I played Sleigh Ride on was a cheapy Fender acoustic. This year I think I'll post a tremolo piece of Silent Night. If I can get my dog to shut up long enough for me to record it