To restore layouts to change all screens you modified back to the default, with the exception of column order and column display:
1. Go to the Layouts tab and select Manage Layouts.
2. Select the layout you are currently using.
3. Click the Restore Layouts button in the bottom left corner.
4. Click "Close"
5. Check "Select All" and click "Restore".
6. Click Close to accept changes.
7. Click "Close" to finish.