I've had a 32" JVC television for about 3-4 years. At times I noticed that I could hear a high-pitched tone when it was on. Kinda like back in grade-school computer science class when everybody was supposed to turn off their computer and monitor at the end of class ... but if somebody forgot to turn a monitor off you could hear a distict high-pitched tone. Well, at least some of the kids could hear it. This JVC would do that when it was on, but it wasn't all that loud and it didn't bother me unless I watched way too much TV. Last weekend I took delivery of my first projection TV - a 43" Philips that was on closeout at Fry's. I was thinking the high-pitched tone wouldn't be a problem on a rear-projection set. But this thing is worse than my JVC ever was. I can't watch a movie without my ears ringing afterwards! I can hear it using any source - tuner, DVD, VCR. And the volume level doesn't affect it. I'm thinking this has got to be bad for my ears. In fact, I'm afraid I may already be getting tinnitus. I'm going in next week to have my hearing checked. My wife says she doesn't hear it. But she was apparently one of the kids who couldn't tell when a computer monitor was left on. Still, I'm worried about her too. My questions are: What in the TV is making this noise? Has anybody else experienced this problem? Do you think the TV is defective or can I expect every 43" Philips to do this? Is there something that can be done to "fix" it? What brands are more or less likely to have this problem? I consider this a health issue, so any assistance you can provide would be GREATLY appreciated. I tried a quick search on this site, but came up with nothing. I've had the Philips for just over a week so I think I can still return it. But I need to make a decision fairly quickly.