hi, I had installed Mediawiki 1.7.1 and 1.9.1 locally on the system using IIS 5, PHP5.1.6, and MYSQL server 5.0.24. It was woking fine for almost week after installaton, but suddenly i get this particular error message when i try to access the wiki site on my system. Wiki has a problem *Sorry! This site is experiencing technical difficulties.* Try waiting a few minutes and reloading. (Can't contact the database server: Access denied for user 'wikiuser'@'localhost' (using password: YES) (localhost)) I have no clue why this is happening though, can someone kindly help me. Thanks.