IMac Startup Mysteriously Turns On Sony Stereo Receiver

Yup. That's right. Every time I start up my new 24" iMac, my 10-year-old Sony home theater system switches on as well, right after the chime. There are no wires or any other kind of connection between the two. There are no peripherals attached. They face each other in the same room, with about 15' between them. I'm guessing that it's some kind of IR remote control thing, but it still doesn't make any sense to me.
Has anyone else experienced this or have an idea what's going on here? It's driving me crazy!

Have no idea really but try "pairing" your remote and the iMac.

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