Most ePubs I have created display the correct cover image in Stanza Desktop (Mac) and on the iPhone. However there are 2 books that always display the wrong image in Stanza Desktop, and the same wrong image as the thumbnail and initial cover image in Stanza on the iPhone. (On the iPhone, a few seconds after opening the book, the cover page loads and the correct image appears. Stanza Desktop always displays the wrong image).

These books display the correct cover image in Adobe Digital Editions (Mac) and on a Sony PRS-505 Reader.