And once in a while, a story with no pictures just doesn't work. If I can get a list of those, I can start taking apart the epub and maybe find what's causing the problems.

Charming Demeter's Daughter It has double <br> instead of paragraphs, which made my PRS-505 choke.

Also, anything that goes over the 300k uncompressed/100k compressed file size limit (i.e. long unchaptered works). Example: The Seventh Circle Of Hell