XHTML Validation problem

Hi, I have a page that displays data entered by the user. There is one user that entered the character "&" inside the text he typed. For this case the xhtml validation fails and gives me the following error: "character "&" is the first character of a delimiter but occurred as data." I'm wondering if there is a way to avoid this error. The page itself is valid and fails just in the case the user enters the & character. Thank you ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ