Update Book dialog does not appear

(FM12 on Win7)

When attempted to update the book, clicking the icon or using Edit > Update book, the dialog box does not appear but FM responds as if it has appeared.

• If I click anywhere on the FM interface, the Win7 sounds tells me that I clicked in a wrong place.
• If I press Escape, focus returns to the book.

Under Edit > Preferences > Global > Interface, all of the Pods option boxes are clear.

What next?