Loving the EM5 so much that I got the new PL5 a couple of days ago as backup camera to take advantage of Black Friday/Cyber Monday sale. But after setting up camera, I notice a bundle of bright BLUE pixels in one spot, regardless of shooting or playback mode. So I went online and found Olympus has proudly published an article on their "Pixel Mapping" technology here: Ask Olympus: What is Pixel Mapping? But I still have the following questions: 1. According to article, dead pixels are black, stuck pixels are white, and hot pixels are white, red, orange, green, or yellow green. But how come none of them is BLUE which is what I am getting on my PL5? 2. Even if the Pixel Mapping feature could "hide" this problem, should I attempt to get an exchange from local store, considering this is a brand new camera that I got yesterday and haven't gone out shooting with it yet? 3. Doesn't pixel mapping degrade Image Quality? I mean if the info is unavailable at a specific location/area, what kind of effect does it have on IQ by "borrowing" info from nearby pixels? 4. Last question, why does this dot show up only in JPGs and not RAW? Does Lightroom automatically map something like this out? I don't set up my Lightroom to do "noise reduction" or anything similar so I'm really not sure why I don't see in RAW?