NO, it is actually a fun experiment to see if anyone knows computers other than those in the business of fixing them.
Sound is not important on the computers I use and the kids can wait on this one until someone happens along to show us the WAY! My buddy thats retired from Nasa is a good hacker and when he stops by if he can't fix it, when he gets home he has a buddy that owns a computer store that makes all their computers and he simple ask them and then tells me, been there done that plenty of times before.
When I find the answer to the REBOOT and loose your sound problem, I am going to write it down!!!