Can not login to dashboard

Hi,
I've followed the install guide...

I added Multi-Domain, added my domain name. I created the new A record.

I can visit the front end, madsen.egglestonbunch.com, but when I try to go into the dashboard, I'm redirected to the WordPress login page. I try to login, but am continually redirected to the login page. No error message, just keeps refreshing the login page.

I've tried just about everything I can think of...

Thanks
Chris