These days you don't need to install any 3rd party antivirus - the Windows one is absolutely fine.

dlion16
...as for norton, i believe it is one of the worst .. let's just say you would be better served by avast free, it doesn't interfere... uninstall norton and install avast.
 
my best advice...

Exactly what I did as well.
 
+1

Changed update calendar to start up as before, saved a version of the project that does not crash, (which I don't know why does not crash), and I don't know how to temporarily diasable Java yet, but I'll figure it out.
 
Thanks everyone!

I just discovered a clue to the elusive crash anomaly.  When I open this particular project by going to the windows start button, then highlight Sonar X2, then select this project from the drop down menu of recently opened projects, it is crashing upon open!
 
If instead I open Sonar FIRST, then click the open tab within Sonar and select the project ... no problem.?
 
Weird but true.  I really like x2 and this is no big deal and probably due to my set up and its multiple uses.   
 
Any one else see this happen before?

I always open projects after launching SONAR. You might want to try opening the project in safe mode and try disabling plug-ins one at a time to see if one of them is taking SONAR down.

sorry if I missed this because I did skim through a few posts but I would run a virus scan before anything to rule out a virus.
then I would remove Norton, you may need to download the Norton removal tool and install free avast.
its very light and you barely know its running in the backround.
 
even if you shut Norton off to temp/ disable it for using sonar it still has processes that run in the back round, well so do other AV's but not like Norton, its a resource pig.
I use it on one computer in my house, my 7 year old daughters, because she is constantly clicking on trash links to kids games.
ive set up parental controls for her machine but still, some of those links are ones she clicks on from inside another web application, "danger will robinson "

Norton does not need to be running when you are working with SONAR and should be closed. It will also help performance a bit to disable networking on your DAW computer (then you won't need an AV all the time) and only enable it as needed.
 
As for Java, if you have something like Room EQ Wizard installed, then you need Java. You should disable Java's automatic update options in the control panel (plus disable it in your startup options), as well as anything else that runs automatic updates (Windows Update, cCleaner, etc...) so it isn't trying to check for and possibly download updates while you are working on music.

rocadani
I just discovered a clue to the elusive crash anomaly.  When I open this particular project by going to the windows start button, then highlight Sonar X2, then select this project from the drop down menu of recently opened projects, it is crashing upon open!
 
If instead I open Sonar FIRST, then click the open tab within Sonar and select the project ... no problem.?
 
Weird but true.  I really like x2 and this is no big deal and probably due to my set up and its multiple uses.   
 
Any one else see this happen before?

That sounds like you have a corrupt file in your jump list folder.
The files listed as you describe are technically called jump lists, and are not the files that they say they are. They are not even standard Windows shortcuts to those files, but rather entries in another file that lists recent document locations for a given program. If one of those files is corrupted, it can point the program to a bad location and fail to open the program with the file loaded, which is how it is supposed to work.
 
You can see the files by typing  %AppData%\Microsoft\Windows\Recent\AutomaticDestinations into the start menu search box or into the address box of windows explorer. Unfortunately the files are named in machine readable gobbledygook, one unintelligibly named file for each program. You can poke around inside the files by opening them in a text editor to see if you can find a clue about which is the one for Sonar. Or move all of the files to another location leaving that folder empty, then open and save a project in sonar to see which file will be re-written, then erase the file with the same name from the new location and move the others back. That should render the jump list for Sonar empty and preserve the other jump lists. Or you can erase all the files and lose all your jump lists and start again. Or you can just stop opening files from Sonar's jump list which is by far the safest and easiest solution.
 
At any rate, the fact that you can open the project from within Sonar indicates that it is not a corrupt project. You should also be able to open it by double clicking the project file itself, and if you were to create a shortcut to the project file, that shortcut should work as well. None of those actions depend on the jump list system. I suspect that all the activity you see when you click that filename in the jump list is Windows trying vainly to scan various locations for the file that should be referenced in a good jump list file.
 

Agreed that issue is not a corrupt project.  It runs fine when started within Sonar.
 
Took advice on changing Java update.  Also disable Norton when doing music.  
 
Thanks for the insightful replies. 
 
Ron

Much good advice here, but would just like to add that I use Norton here, and have never had an issue with it.  Runs fine in the background, whatever I'm doing.
 
If I have clients in, or am tracking something important, I will disable Norton, but not because it has caused any problems in the past, but just to be on the safe side.