Hello to anyone who can help...

I have all of a sudden lost audio from this site. I can get audio from other websites if I have earphones plugged in and I can still hear the "pings" and "dings" that come along with windows and associated programs.

If I download the lessons and play them off my computer I can hear them but I prefer just to work directly online

I've also checked the volume and mute settings at all the places I can find and all appears to be set properly

thanks