Just a shot in the dark, but you may need to clear your cookies.

A cookie is a small file, one is stored when you click "remember me" near the password box.

If you did that last night before the DNS name was correct, the cookie might be defaulting to a different place.

Click Log Out and login again. That should do it.

Or edit the start page in Internet Options to just be http://sparkyslider.co.uk (nothing after it)