Has anyone else had this happen? The cats weren't near it so they aren't the guilty ones (this time) of the crime.

I still suspect the cats. This happens to a friend of mine, too (1.03, no Hijack), and cats are the only common factor that I can see. I reckon it's their invisible infra-red mind control rays... you know, the thing where they walk into the room and suddenly, without anything Shannon would recognise as information transfer, it's "Oooh, Lottie's hungry"...

Peter