Hi dinosquirrel,
Welcome to the Sonar forum.
First of all, I would like to point you towards the PDF file that comes with Sonar X1 when you "purchase" it. It is called "Sonar X1 Reference Guide." Now don't worry, I am not expecting you to trawl through its 1850 pages. But there is en excellent chapter which covers "Controlling Playback," and starts on page 171.
I'll cover some of the points here, that I think you need to control how the "Now Time Cursor" (that's the vertical line that indicates the part of the project is paying) and the "Now Time Marker" (which is the green triangle at the top of the Clips Pane, and sits in the Ruler section).
Here is a snippet from the guide:-
To change the Now time marker behavior
On the Track view Options menu, clear the On Stop, Rewind to Now Marker option to have the
Now time marker move to follow the current Now time when you stop playback.
Or
On the Track view Options menu, select the On Stop, Rewind to Now Marker option to have the
Now time snap back to the Now time marker when you stop playback.
Note, you should see the Track Options Menu just at the top and to the left of the Track View window.
Also, it is worth pointing out that, you can leave the "On Stop, Rewind to Now Marker" selected, and instead of just pressing the space bar to start/stop playback, you can do the following:-
As you already know, pressing Space Bar simply starts and stops playback, and with "On Stop, Rewind to Now Marker" selected, the Now Time Cursor will return to the Now Time Marker position. If you have only just opened your project, or have rewound to the beginning of the project then the Now Time Marker will be at the start of the project.
You can, by left clicking in the Clips Pane, re-position the Now Time Marker.
If you wish the Now Time Marker to be positioned at the Now Time Cursor position, when playback is stopped, hold down CTRL while pressing Space Bar. The Now Time Marker will be at the position it was at when CTRL + Space Bar was pressed. You can now just press Space Bar to start playback from that point, and each time you then stop playback by pressing Space Bar, it is to that point it will return.
It is worth mentioning that you can change the Ruler settings at the top of the Clips Pane to any combination of Measures, Beats and Ticks (M:B:T), Hours, Minutes, Seconds and Frames (H:M:S:F—also called SMPTE), Samples and Milliseconds. This is done by clicking on the little + sign at the far right corner of the Ruler.
I think that should get you going again. Any more questions, please do nor hesitate to ask.
cheers
andy
By the way... I took so much time researching and typing this that I am going to post it anyway, even though seven posts have just jumped in before me lol