Timing Out

[autoace]

First, sorry if this is the wrong place to post this, I thought this would fit here..

I have a problem that I just can not seem to figure out... about 5pm on Friday, 2/12/2010, I went to go to my site via FF and got this message:

The connection has timed out

The server at www.mydomain.com is taking too long to respond.

* The site could be temporarily unavailable or too busy. Try again in a few
moments.

* If you are unable to load any pages, check your computer's network
connection.

* If your computer or network is protected by a firewall or proxy, make sure
that Firefox is permitted to access the Web.

I had just finished re-installing my site in the root after I had to take it down due to technical 'glitch' - story for another day.

The only 2 addons that I had installed at the time were the 2 avail in the free addsons section to backup the store and the dbase.

My site never times out, so I called my hosting company and they brought my site up with no problems in both FF and IE8. They had suggested that it might be an ISP issue. So I gave it some time. I also tried to pull it up in IE and was NOT able to. I then verified that I could access my site via FTP and I can.

Here is the kicker, I can still use my control panel (cPanel) which from what I understand runs off my domain, right (mydomain.com:1000/frontend....)?

I can browse the web and load any site, but when I travel to my site, it ALWAYS times out!

I also ran a virus scan on my computer and it came up clean.

I believe that I have narrowed this down to an incorrect setting in FF/IE/or my computer.

My hosting company told me to check firewalls and proxy settings. How do I do that? Any suggestions or ideas?