Hello
I use Avast since years and it always be a real pleasure … quality and high performance … 
but since I upgraded my video card ( Nvidia GT610 ) to connect my computer screen and also my Toshiba TV with an HDMI link
i have a real weird Issue with Avast sounds …
I have an ALERT sound yelling on my TV when i choose to use the HDMI to have both screens …
I tired to set parameters / sounds all to Off … but still have "Alert " sound … only on TV not on the computer sound output …
I tried to reboot, it shut off the sound for a few minutes and then it come back again only if i turn on Avast again !!! ( still no sound ticked in Parameters/sounds )
Its realy annoying since i cant use my TV to watch video and sound …
I use last Avast version 7.0.1474 with last database update
Thanks for help