Recently, I can no longer get any audio from anything on the internet including Youtube, Pandora, news videos, etc, but sound still works on iTunes and for playing CDs. I have seen a lot of suggestions for using the registry editor, but to no avail. I went to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32 and attempted to add "wavemapper" with msacm32.drv as its entry value but it tells me "The Registry Editor cannot rename New Value #1. The specified value name already exists. Type another name and try again." But when I go to Edit -> Find and type "wavemapper" it does not bring up anything.