Anyone have a Panasonic plasma that makes any noise (like a high pitched hum or anything)? I have a Pioneer that does and every time I read a review of ANY Pioneer, they mention that there is some audible hum out of the set and the review usually goes on to state that every Pansasonic that has been tested is completely silent. I will give up some picture quality if I have to to get a plasma that is completely silent. Even with the next generation of Pioneer's coming out soon, I won't take that risk of having a set that makes noise.....