Ebook loads but is empty and freezes the program.

Please. Have reloaded Digital editions after emptying and reloading my computer from the basement. Have registered and got itunes and NVDA exactly as it was last time I used it.It loaded and played my book the last time.  it loads and plays the free ebooks that are on offer but when I load My ebook    http://store.blurb.co.uk/ebooks/449919-some-doggie-poems-wot-i-have-writ    and put it into the library I then try to open it, it opens but is empty and it freezes everything and the only way of removing it is to switch off my computer. I have been in touch with Blurb who assure me there is no problem their end. can anyone help please. MICK.