What the EFF, Dreamhost?

My dad's website (which I designed and do some admin work on) has been going up and down, up and down all day. The Dreamhost control panel tells me that the site's directory doesn't exist, nor does its Apache configuration, which I could buy if the site wasn't working half the time. Also (this is a Drupal site), when you go to any of the "hard-coded" pages ("admin", "blog", etc.), you get a 404 error. Makes no flipping sense.

Also, it keeps rejecting my FTP password.

No idea what's going on, but I am not pleased.