Dead/Stuck pixels HELP!

So theres a little story when it comes to my post. About two weeks ago i brought my powerbook g4 into a local apple store to have the screen replaced because i had a cluster of dead(white) pixels. They were very nice about it and sent it out and replaced the screen. I got the machine back and last night i was using it and noticed a flickering pixel so i brought it to a closer apple store, the genius saw it and also identified another deal pixel as well and they were able to replace the screen within an hour. So.. i recieved the laptop with another new screen and when i got to my car i turned it on to inspect it and right off the bat i saw 2 dead pixels. I went into the store and they said that the dead pixels were withing normal defects with the moniters and nothing they could do. Apon further inspection i noticed that on the screen, there are about 40 stuck blue pixels, 6 red stuck pixels and about 5 dead(white) pixels. i brought it back and talked to a manager who could only see one dead pixel and nothing else.(im assuming he was blind) He told me they could do a courtasy fix and try to remove the dead pixel. Also stating a replacement warrents 10 dead pixels(which is odd for the replacement of the other times) Now having this screen replaced twice before in the past 2 weeks this would be a third major repair and i feel like in fear of the no lemon policy he was hesitant to help me. i need advice on what to do. the laptop is about 3 years old and is still covered under applecare.