When there are extended characters in the title of an entry, mainly noticable on a period character, the application errors out... See here for an example..
http://dev.mylargescale.com/Feature...fault.aspx
Some appear to work fine, while others do not.. Like I said, this is mainly when the user submits his entry with a period at the end, or several periods in some cases.. There is also an entry in that contest that has quotation marks. While the quotes get urlencoded, they still make the app bomb.. It you remove the encoded quotes completely and remove the trailing period, the entry will display fine..
Also, I have SEO turned off, but it still seems to be making these entry pages SEO friendly.. Any idea why?