LostBoy, I remember seeing that thread on deja also, but since the OP said it was an Optimus monitor (not a Relisys) I didn't mention it (I should have, in hindsight). I couldn't find anything about Optimus brand monitors with a web search.
But after seeing the picture, it really, really looks like something that comes from the monitor. I'm in agreement with the other posters that it's a monitor feature.