Maybe your browser needs to be updated??
Is is firefox? 13.01 is the latest update

click Help and then About Firefox to check that.

Also Tools & Add ons - check those for updates...


Or you can re down load FF from Mozilla and re install it - right over the top of FF you have already, it will keep all your same info & settings.

Oh, does the sound work with IE or Chrome browsers???

If it works fine then it would be a setting/add ons or something with the browser you are using and not with the computer.

But if it is a problem on all browsers, then it is something with your computer or windows.