In that case, it's probably none as I'm using Windows XP. Thanks for the help. Guess I'll just have to convert titles to ASCII.
By the way, I was just checking the online manual (*gasp* yes, I read the manual

) and I noticed the conversion options have changed. I looked at the changelog and didn't see any comments regarding the change. Has this been implemented yet? Currently, I'm still using older versions (0.4.143, 0.5.3, 0.5.8, basically whatever was out at the time I rebooted my computers) and I have a bunch of PHP scripts that rely heavily on the Calibre command-line utilities so I can't just upgrade arbitrarily.