Jim
I found this
So, that was it. Some sort of weird and only-on-my-laptop conflict with Microsoft Security Essentials. Luckily, the Microsoft Security Essentials UI isn't dumb, and provides quite nice "exceptions" capabilities. I simply went into its settings "tab" and then to Excluded Processes. Then, I added exceptions for:
C:\Program Files (x86)\J River\Media Center 14\JRService.exe
C:\Program Files (x86)\J River\Media Center 14\JRWorker.exe
C:\Program Files (x86)\J River\Media Center 14\Media Center 14.exe
And the problem was completely solved. MsMpEng.exe is now acting completely normally again and back to not using any system resources. Even better, MC is now working PERFECTLY.
and have tried it on my desktop pc.... I also found a new set of audio drivers from gigabyte with yesterdays date and installed.
I was looking at JRService.exe, but searching the forums seems to indicate it's okay and not a problem. I do have UAC as off as I can get it...
I run mc14 locally on one machine, no network involved.
Now to test it, I need to not use MC for many hours....
Something is "noticing" that mc14 has not been running for a number of hours when started and causes the audio muting for 1-2 seconds shortly after pgm start. I could stop/start mc14 20 times in a row, and the problem would never show up. But let it be not running for many hours, and it shows up on start once...
When I figure this out, it will be a new one for the "weird issues" thread.