I've been using plus and minus keys to adjust volume and pan setting in track view forever.  However, since the latest update, I now get a window in the upper left corner of the screen with a slider control that seems to have no affect on either the volume or pan settings.  I've looked in the manual and did a quick google search but found nothing.  Does anyone else get this?  Anyone have an explanation?  Thanks for your answers.

Some other utility (video related?) on your PC is trapping the keys.

Thanks Steve, I think you may be right.  I'm afraid this may be related more to Windows 10 than Sonar.  Any idea how I can track this down?

Check the notification area for the utility

scook
Check the notification area for the utility

I guess if I knew how to do that (or which utility) I wouldn't be back here again.

The notification area used to be called the system tray on the right hand side of the task bar. As far as which utility, I am guessing something to do with your video. It could be something else. All I can say for sure is it has nothing to do with SONAR.

Thanks Steve.  I'm guessing it might be my nvidia driver.  It tells me that a new driver is available, but when I try to download it, it doesn't download.  I'm glad to know that Sonar isn't responsible for the behavior I'm seeing.

It does not help much if the +/- keys are trapped by another application. I am only guessing video but it could be something else. I do not have an nvidea card to test.