Left the dead computer and a cardboard box full of other electronic stuff out last night for collection early this morning, as directed by the building superintendent. It appeared not to have been picked up, and my guess was that notwithstanding what the superintendent said, we do not actually have garbage pickup on Tuesday nights, only on Thursdays. So I brought the items back in just now, thinking to leave them out again tomorrow night, Thursday. In so doing, I noticed that one item had vanished from the cardboard box: the dead motherboard from the Pentium III machine. The motherboard from the dual Celeron remains. It seems unlikely that the City would have pulled out just that one item to dispose of, so my guess on that is that either (A) I misremembered what had been in the box and it was never there to begin with (unlikely), or (B) some scavenger came along, looked carefully at the items, and decided that one was valuable enough to make off with. If so, they'll learn the hard way that it is kaput.