The audio comes and go's. I watch TV shows on line. The sound will be there some time ,then I click on another show and I wll get error that I will attach be low. I did what it says but no doesn't help .this problem has just started. This is what it is. Microsoft master volume v .5.1 build 2600xpsp intel(r)audio integrated. I don't.t no how to reinstall it, or where to look for it.. Some time when I reboot it comes back.Thanks for any help you con give me on this. XBILL