After a good bit of searching I have not found anyone else with this problem.
After converting my .epub files to .mobi for my kindle 3 I often end up with an excessive left margin
http://tinypic.com/view.php?pic=2z6xjjr&s=7
here is the original .epub and the output .mobi. Thanks for any advice
http://www.filedropper.com/archive_56