The problem is that i wanna try to make you delete the mysql database which is the one that store all the user/pass for access mysql, that means that once removed none of the website would work untill we reinstall mysql and reimport all the mysql related stuff from da backups.
And it's quite risking to do that via forum, i'm leaving the office in 20 minutes and i'll hardly be available after, so maybe we should think about do that tomorrow and check if someone else add some ideas to fix the issue?
Regards