The Domain Thing

Not sure what is going on with the domain. It works and then it doesn't work. I thought it was ok tonight. Just sent thank you notes to tech support at geohost.ca and the Blogger help blog I found for custom domain help. But it's 404 again when I try to load the blog now. Urrggghhhh!

Update: I think I've got it now!! It was a www versus non www thing.