Layouts

Outlook 2010 gives you more options for viewing folders, header info (from/subject) and the preview pane. I've noticed that the "two line" format (by default) is kinda interesting, but not for me. If you want to go back to the single line format (for the from/subject) section, you can change that. You'll see that outlook tries to be smart and make it one line if the width is greater than 100 (or whatever you change it to). TO GET TO THESE SETTINGS (see image), go to the VIEW tab, then click on VIEW SETTINGS.

Related settings: the default for 2010 is to have the folder on left, then the from/subject section, then the body of the email, ending on right with mini-calendar and todo list. You might like that, I do cuz I have a wide monitor, you might want the "old" layout, from/subject on top, body of email below that.