FireflyStream.com

Hello.  I really like your theme and have been using it for a while.  I've found a problem, however, that I can't figure out how to fix.  I've created a custom block that list out URL's for files on my site.  If there is a long filename, however, the system won't wrap it correctly.  It won't break on spaces or dashes, for example.  Have you run into anything like that before, or have any ideas on how to fix it?

 Thanks!