Periodically, when I go to select a bookmark in Safari (in the bookmarks bar), the oval that highlights is off centered. This occasionally goes back to normal. In Address Book, the same thing happens with the "Name" and other similar fields. Right now, if I hover my pointer over them, the ovals are centered fine. But, from time to time, these too lose their "centeredness". Another annoying thing - some Address Book entries have the name field tabbed over 1/2". Any explanation for this behavior? It isn't hurting my workflow, but is very annoying. I'm on 10.2.4