Each panel is AOL Mail is customizable so you can focus on what's important to you. Just drag the panel so they're the perfect size for what you need.
1. Hover over the line separating the panels.
2. Click on the arrow that appears.
3. Drag the arrow so the panel is the size you'd like.
Open or close the Contacts, Calendar, and To Do panel:
1. Hover over the line separating the top and bottom left panel.
2. Click the Expand/Collapse icon.
3. Alternatively, use the arrow as described above to resize the panel.