You can specify the width (in number of characters) of the message list before Microsoft Outlook switches to single-line layout.

1. On the View menu, point to Arrange By, and then click Custom.
2. Click Other Settings.
3. Under Other Options, select the Use multi-line layout in widths smaller than n characters check box, and type the number you want for n.

If the message list in multi-line layout is not wide enough to display all the column headings (column heading: The horizontal bar at the top of one column in a table. There are multiple column headings in the column heading row.) about an item (item: An item is the basic element that holds information in Outlook (similar to a file in other programs). Items include e-mail messages, appointments, contacts, tasks, journal entries, notes, posted items, and documents.), pausing on the item will display a ScreenTip (ScreenTips: Notes that appear on the screen to provide information about a toolbar button, tracked change, or comment, or to display a footnote or endnote. ScreenTips also display the text that will appear if you choose to insert a date or AutoText entry.) containing all this information, plus any additional fields that are displayed in the single-line layout for this view.

1. On the View menu, point to Arrange By, and then click Custom.
2. Click Fields.
3. In the Maximum number of lines in multi-line mode box, enter the number you want.

• On the View menu, point to Arrange By, and then click Show in Groups.