Apple Keynote '09 - Manual (Page 28)

The commands available in the shortcut depend on what item you click. This
picture shows the options available in the shortcut menu when you Control-click the
slide canvas.
The Warnings Window
When you import a document into Keynote, or export a Keynote document to another
format, some elements might not transfer identically. The Warnings window lists any
problems encountered. You might get warnings in other situations, such as saving a
document in an earlier version of the application.
If problems are encountered, you’ll see a message enabling you to review the
warnings. If you choose not to review them, you can see the Warnings window at any
time by choosing View > Show Document Warnings.
If you see a warning about a missing font, you can select the warning and click
Replace Font to choose a replacement font.
You can copy warning messages and paste them into a document for reference later;
these messages could be useful for diagnosing problems.
28 Chapter 1 Keynote Tools and Techniques