Alright, so I finally powered the thing up, and it's got some bad clouding in the middle
I ran some YouTube videos of arcade games(which I know will look worse than MAME) and it wasn't noticeable in most games as most games have black or dark or busy enough backgrounds to hide it.
I also went to Vnes and played a couple games, and on lighter screens it's really obvious.
I got this screen from Craigslist for $40, and now I know why. The guy who sold it to me said he had a car adapter to show me that it worked. Of course when I met him this morning, he said he forgot it, but gave me his number. I know I shouldn't have bought it untested, but I tend to trust people(one of my faults) It's a 20" Dell, so it's a nice big size.
My question is this, should I bug the guy to take it back(if it's even a legit number) or just live with it? Like I said, it's not noticeable during most games, but I know on the front end, and lighter games it will be annoying.
Goes to show, if it sounds too good to be true, it probably is.