Marketplace loop/redirect error

Hi I just installed marketpress at bearinginstaller.com and I am getting the following error while trying to checkout
Firefox:
The page isn't redirecting properly
Chrome:
This webpage has a redirect loop.

The webpage at http://www.bearinginstaller.com/store/shopping-cart/checkout/ has resulted in too many redirects. Clearing your cookies for this site or allowing third-party cookies may fix the problem. If not, it is possibly a server configuration issue and not a problem with your computer.

This is not MU.
Any Ideas?