irrational writes: > When trying to create thumbnails from images using the Zope book example, I > get an IOError. > This occurs when the image I am trying to thumbnail is larger than about > 200k. Smaller images work fine. Maybe, an old bug: For small images, "data" is a string. For larger images, it's a complex object. You need to call "str(data)" to obtain the content. Dieter