To add to my car's wierdness of the past few weeks, I get home this
afternoon from work and park the car. After I turn off the engine, I
notice a high-pitched whine. I try to listen, but not much comes to
mind.

An hour or so later, my wife takes the car out to go to the store. She
comes back and reports an extremely high pitched whine notible while
driving.

Just now (five hours after arriving home) I go out and check the car.
The whine is still there. It sounds like someone rubbing a wet er
along the rim of an almost full wine glass.

Any ideas? Nothing seems to be on. I flipped all known switches and
nothing helped. I do notice it more in the front than the rear, but
can't determine exactly where.

We'll see if the battery is drained in the morning. (Go figure, as my
wife left the lights of the minivan on all night and I had to jump it
this afternoon after I got home.)