I use the highlight tool in Acrobat Pro frequently to edit the semi-final version of a magazine. I'll highlight a word or phrase and then double click so that a note box pops up. In the box I indicated what the highlighted text should be changed to. I was in the middle of working on an issue when all of a sudden the highlight tool went nuts. When I try to highlight something, it will highlight two or three lines at once, or even the entire paragraph or page when I'm just trying to highlight a tiny comma, etc. It is completely haywire and unusable. please HELP!!!! I cannot continue my work without this feature.