If you have the ability to "delete cookies" on your web browser, you can vote multiple times

Here are the cookies to delete:
all of the ones that read: "ehg-cbs.hitbox..."
all of the ones that read: "hitbox.com"
all of the ones that read: "www.pcavote.com''
In Netscape go to "Tools" to "Cookie Manager" to "Manage Stored Cookies" and you can delete them one by one. I'm not sure how you'd do it on Internet Explorer...