We're still teaking the update. You'll find today that your PM boxes have more capacity now. You can also add a profile picture up to 400 x 400 pixels and finally the info that displays on very post (username, avatar pic, location, etc) is now on the left instead of above the post. While this reduces the width of the post text a bit, it substantially reduces scrolling.
You can also update your avatar pic if you like to a new larger size: 100 x 100 pixels. it will be nice to see larger images