Comment Excerpts too long on Mass Edit page

It seems that my Comment Excerpts are too long on the Mass Edit page of my blog. Take a look at the screenshot and see what I mean. It only happens on the mass edit page (and yes it happened before I changed the default stylesheet. I have another WP site and that one works fine. It is nothing that is affecting my site, but it is just annoying that the text goes so far over. Anyone have a fix?
http://www.radiantrock.com/blog/wp-content/problem.gif
Oh, and I’ve already tried to add a class to the table, th, and tr tags that surround the excerpts and got no luck trying to change the width that way.