I know why he's just now seeing them......everytime I buy a new video card, I scrutinize every pixel of every game I play for the first few days.
It's my way of helping myself deal with the guilt of spending rediculous amounts of money on my hobby. So far, it has helped me reduce my guilty conscience because all of my video upgrades seem to have been good ones.
I say put that old 9800Pro back in and look at EQ2 a little more closely. The same if not worse jaggies will probably be there. You didn't by any chance turn up the image sharpening in the Nvidia control panel did you?