This forum have given me several possible cures. Since it seems not to be a common problem, I am optimistic that one of them will work. I need to turn my sound back on and find that warning. Many thanks to you all.
This forum have given me several possible cures. Since it seems not to be a common problem, I am optimistic that one of them will work. I need to turn my sound back on and find that warning. Many thanks to you all.