I see that but I am not sure I follow. The client entered the information (where previously there was just the title "Enclosures". The html is visible when in source view, but not in the view the customer used. Even the word "Enclosure" has html associated with it, and when only the title was present previously there was no check out failure.
I guess my question is why is the html being passed, or is there a character limit to the description? Or could it be the inline css present (red text) rendered by the text editor?