I'm not sure if this means anything or not... I noticed that starting sometime last week, my Key Digital HD Leeza began making a sort of humming noise. Kinf of similar to a kitchen fan on the lowest setting. I have all of my components tucked away in a hall closet and so I only really notice it when I open up the door to put in/remove a DVD from my player. Otherwise, it seems to be working just fine. But I can't say it's ever made a noise like that before. It's my understanding -- at least I don't think that video scalers should be making any noises at all... Am I wrong? For the record, I generally never turn the thing off. My dealer told me that it's okay to leave it running all the time. When I began to notice the noise, I'd power it down and it'll start up again quietly and the buzzing noise would be gone. But by the time I'm finnished watching a movie and go to the component closet and open up the doors to remove the disc, it's going strong again! I'm a bit concerned that my Leeza might be giving me a warning, and the last thing I want is to have it conk out on me. I only bought the thing a little over a year ago. Any advice or suggestions on what to do and if this should even be a concern? Anyone else ever experience anything similar before? Is your scaler/processor noisy? Any feedback would be really appreciated!