20.3.0.36 - 15 minutes into youtube problem.

Hello

This has been bugging me for a while ....  running Windows 7 64bit and NIS 20.3.0.36 .

I have turned off  "idle time optimizer"  and yet  when i  go to youtube and select any hour long or longer music session  to listen to while i run on my cross trainer etc ,   every time 15 minutes into the music ,  the sound breaks up for roughly a minute as if Norton is doing something in the background to my disk .   I have tried running update before i leave my computer idle and  i always put it on silent mode to , but it still does it every time .  I dont have any other security software running and nothing else is scheduled .

Not a huge problem of course but its a mystery.

Thanks.