Hmm, seems to work fine here though.
Can you confirm that PDF's work in general? ie: can you create a PDF of another thread or is it all threads?
Yes, PDFs work fine otherwise, that bitg of markup was part of a larger document, I removed the parts of the document until I could narrow it down to that chunk of markup.
Doing a little more testing, it seems to be directly related to the <>, If I remove them from the post, it works.
The least amount of markup needed to fail is: