Hello, I am french and I have somme problem with jboss instalation with mysql and eclipse. I use windows XP and I have installed jboss 4 with mysql (mysql 5.0) in eclipse. When I try to start jboss, i get the folowing error : org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (java.sql.SQLException: Access denied for user 'sa'@'localhost' (using password: NO)) There is a relation with mysql I beleive. can anybody tell me what to do ? Thank you. By the way it seems that i have to configurate the user name and password etc.. for mysql. In which file i have to define that ? Thank-you View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4164063#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...