Some customers report that they can't reach my site:
www zoom18 com

When they try they get this error:
"Bad Request (Invalid Hostname)"
I have talked to HostGator where the site is hosted, and they say they don't see any problem from their end, They told me to contact a designer/programmer and try to reduce site load time, crap!

I don't have any problem accessing the site, and don't have an idea why some people are having problems with it, please help!