lucy24 - 2:19 am on Aug 19, 2011 (gmt 0)
I was going to say "later issue". You can't get much earlier than the DTD :) I've seen the "element such-and-such isn't allowed here" line more often than I care to say, but never in response to something occurring after the actual word "ELEMENT". Usually it's a complaint involving &. Conversely, if there's a problem with the DTD itself, usually the validator digs in its heels and refuses to proceed.