BM> I do occasionally get a persistence of a sound actually heard; I
 BM> sometimes have to stop up my ears to determine whether I'm actually
 BM> hearing a noise or not.

 That's a head noise. The URL explains what they are. Ever get hit by
a softball? Bonked your head on something? For an instant you may see flashes
of light/and a 'tone' sound in your head? Those are quite real.

Cindy

--- PPoint 3.01