If your mobile device will not login or launch the full site it does not accept "cookies" which means you are probably using an iOS device (iPhone, iPod, iPad).  Here is how to fix it:

1. From the Home screen touch Setting.
2. Now touch Safari.
3. Change the setting for Accept Cookies to "Always."

You're all done!

If you are not using an iOS device please search the device manufactures web site for instructions to enable cookies.