This is a new one for me.
 
I guess I need to know where the crash dumps are kept and how to read them. Windows dumps. Sonar just stops. I can tell you that it seems like an audio dropout but Sonar does nothing but crash. At the same point, in the timeline, in the project as well.

Nobody has any ideas as to why the project would just stop?

Hello Robert welcome to the forums!
 
Here is a checklist...
 
Does this happen with new projects?
Have you checked the windows event viewer?
 
Have you updated all your drivers esp your sound interface?
Have you run windows update?
Run this: http://forum.cakewalk.com/Driver-Boost-m2928792.aspx
Have you investigated your latency with latency monitor? (check google for instructions)
 
Cheers
 
Oh and ps I assume you have X3A patch installed?

Nothing so far. It's still the same.
 
I'm using X2 as stated in my signature. It's an older project. As much as I don't want to, I'm going to create a new project with all the correct settings and copy the clips over and see what happens. AFAICT, there should be no reason for this. The cpu meters are around 20% with the first one at maybe 40%. Grrrrrrrrrrrr.

> Oh and ps I assume you have X3A patch installed?
 
I'm using X2 as stated in my signature.
 
Install X2A patch. Otherwise please check my previous post (I'm not sure what you have tried or not tried - or indeed if this is a response to my post).
 
> AFAICT, there should be no reason for this.
 
It could be for any of the reasons I have posted, or you may find something in the event viewer.
 
> I'm going to create a new project with all the correct settings and copy the clips over and see what happens.
 
Good idea, good luck.

Check you audio buffers. They could be too low.  

I changed the audio and midi buffers and no joy.
 
This copy and paste this is turning out to be a disaster. Even one track at a time.

You could try freezing all the tracks

I can't seem to figure this out. Maybe Sonar has broken somehow. It's happened to me before. I've ran other projects that use more CPU and no problems there.
 
Does anyone have the info about removing Sonar completely for a re-install.

Clean X2 re-install http://forum.cakewalk.com/FindPost/2817470