Apple has released iPhoto 7.1.3 with a one-line description, "This update addresses issues with wire-bound books and cards." The update is available via Software Update or as a standalone 16.9 MB download.

Needless to say, I recommend you download this essential update right away, even if you don't plan to print wire-bound books or cards, and even if you're not planning on using iPhoto in the near future. If these "issues" are actually psychological problems, who knows what sort of a rampage iPhoto could embark upon, although I would personally worry about the permissions of your photo thumbnails; iPhoto has long been overly possessive about those files.