hi, i want to know if having a dust cluster about 3mm in the middle of the screen is a valid reason to see a genuis. its really annoying when im outdoors since the sunlight reveals it very well and when the screen is on light colors it shows as well. it also seems that when i plug it in to charge wether is on my mac or wall plug that came included, its seems to heat up quite about around the dock connector. just want to know if these are valid reasons. thanks.