I seem to be having a problem with the piano roll view auto-changing the zoom level whenever I select a different track.  Seems that Sonar X3 is trying to be smart by fitting (vertically-speaking) all MIDI content present in the tracks currently selected for the piano roll view.  However, in my projects, this is almost the furthest zoomed out view, which makes using the piano roll nearly impossible.  

I have a zoom level I like, and I'd like for Sonar to not change it whenever I select a new track from the track list.  Any pointers?

Track View > View Menu (the one to the left of the Options & Tracks sub-menu) > Uncheck Auto Track Zoom

Bristol_Jonesey
Track View > View Menu (the one to the left of the Options & Tracks sub-menu) > Uncheck Auto Track Zoom

It was already deselected.  Turning it on or off doesn't affect the piano roll re-sizing when I select a track from the track view.

Earnestly, the developers seemed never make song using their DAW.... VERY UNCOMFORTABLE and chronic problem.

One baker commented about this issue: http://forum.cakewalk.com/Piano-Roll-Always-Annoyingly-Zoomed-Out-m2926022.aspx