Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Dead Pixles

I have purchased several different PSPs and have had to return each of them for the same problem ... Dead Pixles. When I play my games and watch movies they drive me crazy because they create greenish spots all over my screen. I have noticed that it seems like each time I turn the system on more of them show up, they are realy noticable now. If this problem didn't exist I would say that the Sony PSP is one of the best systems ever and by far the best handheld, but because of this wide spread problem I am finding them more and more unsatisfactory.