If you're wondering what I'm talking about... here's a classic example of an over-sharpened pic -- damn hot pic too ;)
http://www.g-stringphotos.com/mymark.../jul004418.jpg
Follow the edge of her body and you will see the "shapen" line... the more you sharpen -- the thicker the line gets -- this makes the model's eyes loop especially wierd... Anyway I'm not picking on g-string -- I see this problem with a lot of content.