I came across this today, which may or may not be relavant to the problem that spawned this thread.
Quote: from langalist [listreply_std@langa.com] 2005-02-28
I recently tried to load the web page of my local computer
parts supplier, Rapidpcs.com, using IE6. I got the page not
found error message. I rang the shop and confirmed the page
was up and running. I tried using Firefox and got the same
result, i.e. this page contains no date (this is the same as
Page Not Found in IE6) I tried dozens of other sites from my
favourites and they all loaded.
I rang the BT help desk. 30 minutes later they said they
couldn't help. They put me onto a supervisor. He couldn't
solve the problem. They then booked a call back from a
specialist team member. After more than 40 minutes, he
couldn't solve it. Not being a "techie" I can't remember much
of what they tried, but I do remember them telling me to open
the "hosts" file and to do a ping test. That confirmed my
computer was communicating with the site, but for some reason
the page would not load in IE6 or Firefox.
In the end they said that there was obviously something wrong
with my set up and I should re-install Windows. I did so, and
sure enough, I was able to access that particular web page
[for a while. But then later] the same mysterious error has
somehow got back into my system!
I am aware that you can stop a particular programme from
accessing the internet, i.e. telling your firewall etc. but
the BT (British Telecom) helpdesk agreed with me that they
don't know of any software or setting that can prevent access
to one, or now two and possibly more, web sites.
Do you have any idea what is going on? Kind regards, Geoff
After several rounds of email, it became clear that Geoff had two
problems. One was a utility he was using: "Peer Guardian." Like so many
hyper-aggressive security tools, this one ended up blocking access to
valid sites, too. When he removed that utility, the problem mostly---
but not entirely--- went away.
The remaining part of his problem had nothing to do with Geoff at all:
Most sites are set up to work with or without the "www" in the URL. For
example,
http://langa.com and
http://www.langa.com get you to the same place. So, Geoff (not unreasonably) assumed that rapidpcs.com and
www.rapidpcs.com were the same.
But they're not.
http://rapidpcs.com/ doesn't work, but
http://www.rapidpcs.com/ is perfectly fine.
This can happen when, by design, accident or other reason, a web host or
registrar sets things up so that you *must* use the "www" in the URL.
Yes, it's a little silly, but a surprising number of sites are set up
just that way.
So; If you have trouble connecting to a site that you think *should* be
working, be sure to try both the long and the short form of the URL. If
one doesn't work, the other just might.
If neither way works, and you're sure the site is there, and that you
have the URL correct, then it may be something on your own PC that's
blocking you.
Unquote