I upgraded to S-PlatD and also have Rapture Pro.  RapPro has its issues, but none manifest themselves as stability problems.  The problems I'm having with RapPro are of the outright 'don't work ever' variety, which have been fully acknowledged and are being addressed by the Instrument Bakers.
 
None of them are keeping me from using S-PlatD or RapPro.

Stable for me, most of these look like environmental issues. If there are specific issues you have the problem reports forum.
 
I'm wondering also if it is maybe a change in behaviour with the MIDI that may be causing issues. Some soft synths may be compensating for Sonar's old behaviour.
 
I suggest people having issues check page 7 and try reverting to the old behaviour. If you find a plugin starts to behave itself I would log an issue with the third party.

Rap Pro is NOT causing stability issues for me either. There are other problems but that isn't one of them

Jeff Evans

Anderton
One comment about load times: it sure seems that Windows itself takes a looooooong time to boot fully. After I enter the password, I go do something for 5 or 10 minutes. A project that can take a minute to load right after turning on the computer can take 10 seconds a few minutes later.
 

Hmmm not sure Craig about this.  I have just built a new Win 7 64 bit machine with a Samsung SSD as the C drive.  I get to the desktop in Win 7 in 23 seconds.

On my laptop with an SSD, yes. On the desktop it's not just a SONAR issue, same thing if I want to open Open Office and write something. I think a lot of time is spent scanning external USB drives and other USB devices. Or it could be that the squirrels running on the treadmill inside the computer need to awake fully.

BobF
I upgraded to S-PlatD and also have Rapture Pro.  RapPro has its issues, but none manifest themselves as stability problems.  The problems I'm having with RapPro are of the outright 'don't work ever' variety, which have been fully acknowledged and are being addressed by the Instrument Bakers.
 
None of them are keeping me from using S-PlatD or RapPro.

 
hmm for me Rapture Pro on occasion just hangs the PC. After about 5-6 minutes I am forced to re-boot. And other times just closing/re-opening Plat sorts it.

Anyone here with stability problems using Slate VMR? I was having trouble, then read on the literature that they recommend people stick with the VST 2 instead of the VST3 because of stability issues. After loading only the VST 2, a lot of my problems disappeared. The problem for me was Slate, not Sonar.

Have those of you that are experiencing crashes etc tried to reset and rescan the vst's?
 
Just a thought.

I don't think initial load time is very important, as long as things work properly once it's all loaded. That said, I timed my Platinum Dorchester just now. It took 3:59 until ready to work. This was a "cold start": Turned on the machine, waited five minutes, started Sonar by clicking on a project. The computer has 7200RPM SATA drives (other specs below). There are 114 plugins. The project consists of Addictive Drums, two guitar tracks, six soft synths (not frozen) and 11 vocal tracks. A couple of reverbs and compressors, but nothing extreme. I admit I run antivirus in the background, but no other programs.
 
I never paid attention to this metric before. I usually have other things to do while Sonar is starting, and when I come back it's ready for me. But now that I look at it, and now that I see others are loading in under a minute, I wonder WTH. I should mention that once the program is running I have very little trouble with it. I'm not a commercial studio, but I think I would feel comfortable dealing with clients at the level of stability I get from Sonar.
 
So now I'm disgruntled about startup time, but I never was before. Thanks a lot, everybody.
 
[EDIT: Closed Sonar and restarted the same project. Time to work was :21. Closed Sonar and restarted by clicking on a template containing no recording. Time to work was :09. So I'm feeling much better, now]

That is because of windows pre-fetch, not sonar ;)
 

One thing I have notice with SPlat is the "not responding" in the title bar. I have seen this in screen captures of people's issues as well. Once SONAR has been run once, I do not see a notable difference between X3 and SPlat, but that "not responding" part of SPlat's initial startup bothers me. I am not sure why this occurs though.

They should tidy the whole starting up thing - with a progress bar style animation (it won't be able to report the progress of opening of course, it will be more like a 'buffering' thing), but it would be cool to get notified as to what it is actually doing... and we don't need to see the screen setup in realtime, everything can be hidden until it's all ready... Make it a nice experience..