Just picked up my RMBP today - had a bad bottom panel (2 minor dents) out of the box. Took it to the store and they replaced it no issue. Using it tonight I noticed 2 dead pixels in different areas of the panel. I have no desire to return it for two pixels I can't really notice. However my question is, am I able to take it in later if they do start to be noticeable to me and annoy me? Or do I have to do it now if I ever want to have it fixed? For any wondering, my screen is a Samsung.