Ah, such a simple solution, and yet it didn't occur to me to see if there was a newer version. Thanks very much! Terrific program, by the way. I have yet to try it as a replacement for Sony's ebook library program, but even just using it as a conversion tool, it's become indispensable.
One other thing...whenever I go to to the libprs500 website, Internet Explorer complains that there's a problem with the site's security certificate and recommends that I don't go there. Normally I would heed the words of IE, but since libprs500 has such a good reputation on these forums, I ignore the warning...though I thought I'd at least mention it.