I recently purchased a new interface,  was using audiobox usb, and just bought Komplete audio 6.
Since installing the audio 6, my now time marker does not move in my Sonar 7 Producers Edition.
I have trouble shot the entire Options/Audio sections.  
The song actually plays in Sonar, but the Now Time marker only moves for a millisecond then stops, but audio continues to play.
Any advise?
Thanks

I think you'll get more responses on this issue in the cakewalk products>>sonar forum.
 

Scroll lock button on your keyboard?