Thanks, Jo!
Alot of the time when it does it on the name side, it's because it's a really long name and the software has to account for that.
Alot of the times when it does it on a post (post goes off screen) is when there's a super long link causing it. A good fix for that is tinyurl.com It gives a short link and doesn't mess with the post that way. Alot of times I'll go ahead and edit posts where links take them off the screen for the ease of the viewer by visiting that great site.
FYI, tiny URL is an add-on for mozilla firefox with great quick access.
KD