Yup, I'm going to have to.
I tried stopping the fan in the front that I thought was making the noise and when it stopped the whine continued, although 1 second after that the bulb shut down. When I opened it up to find the fourth fan that I was thinking should be there it was buried under a circuit board and I won't go in there. I'm thinking it's the color wheel making the whine as this happened with my Benq 6200 as well but went away.
So I'm gonna have to live with it.
Something really strange happened though when I went to replace my batteries in the remote. I took out the Mitsubishi ones in there and stuck new Duracells in. They didn't work. Tried another pair, those didn't work, and so on. 6 brand new pairs later I tried them in other devices and they worked. Then I tried Energizers, they worked.
Strange.