Yeah... they go all the way across from right to left at the positions I mentioned... if you're gaming it's highly unlikely you'll notice them, but if you are doing desktop work you might notice a pair of slight grey lines going across the screen... I definately noticed them on a model I bought and took home... I ended up taking it back because it was like a wart I couldn't stop looking at.
Some folks don't mind them, and others can't stand them... like I said, it's a personal thing... you might want to go to a local computer store and see if they have any AG monitors, and ask to put it on an all white screen... you'll see what I'm talking about and you can make a decision for yourself. AG monitors are great OTHER then those lines. To some folks like myself, it's a deal-breaker, and I prefer Shadowmasks (I'm not the only one)... others call us crazy and swear by AG... it's a personal thing. You might find the lines annoying, or you may not notice them... Your mileage may vary.
EDIT:
Yeah, that NEC Shadowmask is a good one too... gotta love Shadowmask monitors... saving the world from annoying lines.