The page doesn't validate bacause of a bug in the link url :
An entity reference was found in the document, but there is no reference by that name defined. Often this is caused by misspelling the reference name, unencoded ampersands, or by leaving off the trailing semicolon (;). The most common cause of this error is unencoded ampersands in URLs as described by the WDG in "Ampersands in URLs".
Entity references start with an ampersand (&) and end with a semicolon (;). If you want to use a literal ampersand in your document you must encode it as "&" (even inside URLs!). Be careful to end entity references with a semicolon or your entity reference may get interpreted in connection with the following text. Also keep in mind that named entity references are case-sensitive; &Aelig; and æ are different characters.
Note that in most documents, errors related to entity references will trigger up to 5 separate messages from the Validator. Usually these will all disappear when the original problem is fixed.
I don't know which file to tweak...
BTW I could not register by jabber (nice idea !) or mail since I've never receive my password.
ju [AT] jurun . [org] <-- mail
ju [AT] im . jurun . [org] <-- Jabber
The mentioned error occures if you embedd an URL which includes an ampersand (&) for correct XHTML ampersands need to be escaped as & DokuWiki does not automatically do this currently I have to check if this is possible without breaking something...
BTW. there was an error with the reverse DNS entry of mail server so your host rejected the password mail. It's fixed now - so please try again.
Ok, is there a way to attribute this bug report to me or remove the information .
Thanks again for your wiki, it's really usefull & powerfull !
Ampersands are now automatically translated which should fix this bug.