Here is the Error incase the owner of the site or anyone that can help is interested.

Forbidden

You don't have permission to access /talk/viewthread.php on this server.
Apache Server at www.sciencemadness.org Port 80

You have hit a guard rule. Sciencemadness is set up to reject IP addresses that have more than 30 connections open to the site at the same time, and to block the offending IP address for up to 24 hours. This was needed because people were using web spiders without any speed limits on the site, and it was making the forum super-slow for normal users. Occasionally a normal user manages to hit the limit -- I'm not quite sure how. You have a few options if you accidentally trigger the limit:

-email Polverone with your IP address and request unblocking
-use a proxy like TOR so that your IP address changes
-just wait for the block to expire

A browser will typically open multiple parallel connections to simultaneously load the basic HTML, images on the page, style sheets, etc. But it is rare for a normal user to go over 30. Closing and reopening pages shouldn't push you over 30 unless you do it at hummingbird speed.

It is so rare that there is no pattern discernible so far in the legitimate users that have been blocked.

I just thought of something that might push a normal user over the edge: some browsers allow you to save what pages were open when you shut down the browser, then will automatically reload the pages when the browser starts again. If you had a bunch of SM tabs open in your browser, then went through a browser shutdown/restart cycle, the reloading might hit SM with a lot of connections at once.

A discussion of freeware browsers:

h**p://www.techsupportalert.com/best-free-web-browser.htm

 

do a print screen and upload that picture here if you don't mind -- I also use firefox and everything looks fine...