I don't have an iMac, but I do have a 24" ACD that I bought brand new a few months ago (not refurb). It has a single pixel that is constantly on and it's red. It drives me absolutely CRAZY...probably because I paid $900 for this display. I can't remember ever having a problem pixel on another display...all of them cheaper. So I'm curious about the iMac owners. Is a dead/stuck pixel here and there an expected thing for iMac owners?