To find project errors:
Click the Map button at the bottom of the iDVD window.
Move your pointer over a warning symbol to see a description of the problem.
The map view of your iDVD project shows you at a glance where problems exist in your project. Warning symbols with pop-up messages (shown below) appear in the lower-left corner of the icons for menus with, for example, empty drop zones, empty slideshows, and buttons that don’t link to anything.
Click the Map button at the bottom of the iDVD window.
Move your pointer over a warning symbol to see a description of the problem.
In most cases, you can double-click the screen icon in the map where the warning symbol appears to go directly to that part of your IDVD project. After you fix the problem, click the Map button again to return to the map and verify that the problem is fixed (the symbol is gone).
For information on what specific warning messages mean and how to resolve them, see Related Topics below.