Pretty sure Babe is talking about the web site itself moving around when her cursor runs over the Dell ad and not sound.
The only thing you can do to address that, Babe, is to make sure you immediately click somewhere other than the ad on each page you visit or refresh. It's not a perfect fix but at least it's a work-around.
And there is a reason that there are other browsers available out there. IE is notorious for having serious issues and security bugs. Nothing is ever going to work the same way, or in a good way, forever. =) Sometimes you just have to bite the bullet and make a change. You could download an alternative browser and just use it when IE doesn't play nicely.
If you need help downloading or installing an alternative to IE just lemme know. I'll gladly help.
We are fed by a food industry which pays no attention to health, and healed by a health industry that pays no attention to food - Wendell Berry