My computers sound was working fine, but I had to re-install windows xp home. So now I've got everything running smoothly except there's no sound. There's also no sound icon on the taskbar. I've gone into the control panel's sounds options and the option to display the icon is greyed out. In fact pretty well all of the options are greyed out. One of the first things I did after installing xp was update a bunch of drivers with Driver Max, not sure if that could be the problem. Any ideas?