wtf?

today when i went to start up my server they wouldnt open so i went into SQLyog to see what was wrong and when i tried to connect it said acces denied for user! what do i do? i can't figure out what went wrong. my WoW server was my pride and joy and now i can't use it anymore. someone might have changed my password but, i don't know where they did it or how. i even uninstalled both mysql and sqlyog and reinstaled them and it still doesnt work!

Go to your MySQL server configuration and reset the password through going through the config again. And next time don't share your password :)

but i didn't share it! and how do i go to theconfig?