Fixed or not, I do not understand this obsession of web designers (I used to be one, so I know!) to "Validate to W3C", just because its oh-so-professional to do so. Even if that means doing the wrong thing or not understanding why you are using XHTML. If the W3C Validator says it aint right, then it aint right! right? (ermm!).
Instead of repeating the whole story, I will direct you to Mike Davidson's site who makes a lot of sense
http://www.mikeindustries.com/blog/a...r-own-standard