Hmm... had the same issue here. Being an imaging pro, that one pixel was really annoying me. One thing I had, however, is that immediately to the right of the dead pixel there appeared to be a slight alpha shift- i.e. the pixels appeared darker than the rest of the screen. I called up Apple, and after looking for a web article on the issue, they told me to go to the Apple Store and speak with a genius. I went there, explained the problem, and the first response I got was the standard- "we don't cover less than 5 pixels...but I'll give you the number to customer's relations...blah, blah, blah..." I told the guy that I was completely aware of Apple's policy, and that if it was just for that one pixel, I wouldn't even waste his time. I told him what concerned me was the alpha shift, and just to prove my point, I opened a white page, so he could get a closer look. He stared at it for a while, got on the phone to AppleCare, and within 15 minutes he was offering to either replace the whole laptop, or have my LCD repaired. I think the trick is to me nice, don't ask "what are YOU going to do about it," but rather "what can I do about it," be patient, but persistent, and take anything that they tell you with a big smile. I truly believe that had I gone there with guns blazing, I wouldn'd have gotten' anywhere. Hope this helps.
