I've seen this guy come back a few times now. They're a small moth that mimics a hummingbird. It does get obvious when you get close they aren't a hummer (six legs), but from far away their flying pattern is very similar. (The computer is sort of functioning now, likely has a bad ram stick. Why it insists on giving obscure error codes instead of saying a ram stick is bad is what I'm annoyed about now.)
