RE: Dimension Pro 1.2 and Sonar 5 x64
That is correct, the x64 synths need the SONAR 5.2 patch. Fortunately, both Dimension Pro x64 and SONAR 5.2 are free updates. 5.2 was scheduled for this week, but there was a last-minute delay, it's now aimed for next week.
Thanks for being patient, I'm sure the bleeding-edge status will pay for it.