[glnnjnsn]

Just curious, but did you try opening the initial e-book with a different reading app? Based solely on the information you've provided, that's probably what I would've done - but then again, I switch between different reading apps pretty frequently. Or is there something not explicitly mentioned here that lead you to suspect the book over the app? If, for example, you've previously encountered those same diacritical marks presented correctly in multiple other works on your Sony Reader app, then the book file is indeed a more likely suspect.

For my experience, I've found the various retailers (and apps) to be equal opportunity offenders. I've found the best predictor of bad formatting and typos to be the age of the source work. Older works are more likely to have been scanned, and picked up mistakes during the digitization process.

And out of curiosity, I have (another) question for you: having found the mistakes in the first e-book a big turn-off, did you send any sort of feedback to the retailer/publisher? Did you leave a warning to other readers in a customer review on the Sony site? No judgement here - I sometimes wonder whether I am doing too much or too little in response when I encounter such problems and am curious what others do.

Glad you are enjoying the Amazon version!