Just bought a sapphire 7870 xt boost from newegg and the first thing i noticed after installing it that whenever it boots up there is a was blotchy rainbow dot filled square. After it boots up the dots go away and the card works just fine. Should i keep the card or return it? Will newegg replace/take a return just because of the dots on boot up? Im just worried that the dots are a sign that its a dud and the whole card will die out in a couple of months. Any advice would be appreciated.