Denny,

I have changed hosting services 4-5 times over the post 12 years, and old hosting addresses persist in some ISP's DNS servers (and in local PC caches/histories).

Try to clear your browser cache.

And/or change your PC network settings for Domain Name Servers to:

8.8.8.8
and
8.8.4.4

Those "open" servers are well maintained. They work for me when I travel around the country and I find that I cannot get to a website that I know works.