404: Centos box url broken

[snebel29]

Hi,
When trying to vagrant up on primary-secondary-failover

Bringing machine 'mysql' up with 'virtualbox' provider...
Bringing machine 'webdav' up with 'virtualbox' provider...
Bringing machine 'rundeck1' up with 'virtualbox' provider...
Bringing machine 'rundeck2' up with 'virtualbox' provider...
==> mysql: Box 'CentOS-6.3-x86_64-minimal' could not be found. Attempting to find and install...
    mysql: Box Provider: virtualbox
    mysql: Box Version: >= 0
==> mysql: Adding box 'CentOS-6.3-x86_64-minimal' (v0) for provider: virtualbox
    mysql: Downloading: https://dl.dropbox.com/u/7225008/Vagrant/CentOS-6.3-x86_64-minimal.box
An error occurred while downloading the remote file. The error
message, if any, is reproduced below. Please fix this error and try
again.

The requested URL returned error: 404 Not Found