That has been happening to me for a long time. I think it has to do with using firefox mozilla. You can probably adjust your view of things making them smaller so that does not happen.
We actually look better in Firefox! However, I have set it so you can't dip below a certain width. Shouldn't wrap anymore. We should now look a little better on smaller screens, also Internet Explorer. However, IE is still maintaining to ignore properties it shouldn't so still a little off on the outside borders.