my localhost/phpmyadmin is being directed to my site with .htaccess

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http://askubuntu.com – I have a http://domain/ . The LAMP installation guide on the ubuntu site is incredibly easy to follow and I have only experienced my issue this one time... when I navigate to domain/phpmyadmin I'm getting my sites homepage. My .htaccess file has ErrorDocument 404 / which is redirecting it. I'm not sure what I should check to fix this. Like I said, I've never had any problems until this installation - my .htaccess + phpmyadmin never gave me a problem before. I've tried reinstalling phpmyadmin using synaptic package manager, which usually fixes these weird missing file situations. Any suggest (HowTos)