Wait, is that line that disturbive that it bothers you so much? I mean its just bolded a bit nothing special.. but yea agreed with burt, its probablly browser specific.
Well if you are worried about that line, I think you're worried about probably getting a new monitor or a video card.
Because my friend, not every bodies computer screen looks like yours all messed up and what not most screens don't get blurry like that,
and what you have there is your going to run into trouble if you keep using it like that.