Cannot reach website on my computer but wife can on her PC

[kernel]

I have Windows Vista; my wife has Windows XP.. For two days I was able to go to gapfire.com on my PC with no problem.  Now I am unable.  My wife's computer takes me to gapfire.com so I know there's nothing wrong with their website.  I have tried using firefox, google chrome and IE on my computer to reach the site with no luck at all.  Any help would be most appreciated.

[soybean]

Take a look at your hosts file and see whether it contains a line for gapfire.com.  Here's a reference which may help you locate the hosts file if you're not familiar with it: http://www.windowsreference.com/windows-7/edit-hosts-file-in-windows-7-windows-vista/

[kernel]

Thanks for your quick reply but in truth I did not understand the information when I went to the link.

[Geek-9pm]

Here is an alternative way to get around this problem. The assumption is somebody or something has blocked the site inn your PC. You can circumvent this, in many cases, by using a proxy server. A proxy server is a kind of relay where you give them the  link you want, they get it and send the content to you as if it came from their site.
One list:
http://www.proxy4free.com/
A list in UK:
http://www.xroxy.com/proxy-country-GB.htm

If you can reach the site via proxy, that is a sure sign your computer has some kind of blocker installed. Somebody does not want you to see that site.

Here is one the is everybody may use:
http://hidemyass.com/
That should be self-explanatory! 

[jason2074]

I have tried using firefox, google chrome and IE on my computer to reach the site with no luck at all

Are there messages or details when the site is not able to load? Try pinging the site on cmd prompt.
1.Hit Start and then Run, Enter.
2.Type cmd, Enter.
3.Type ping gapfire.com then Enter.
Sample output:

If the results show a series of replies, the connection is working. The time shows you how fast the connection is. If you see a "timed out" error instead of a reply, there is a breakdown somewhere between your computer and the domain.

[kernel]

see a "timed out" error instead of a reply  so what is the cure?

[Computer_Commando]

Instead of ping, try tracert
tracert gapfire.com

Post results.

[kernel]

  This program cannot display the webpage
   
   Most likely causes:
•You are not connected to the Internet.
•The website is encountering problems.
•There might be a typing error in the address.
 
   What you can try:
     Check your Internet connection. Try visiting another website to make sure you are connected. 
 
     Retype the address. 
 
     Go back to the previous page.
 
     More information
 

[Computer_Commando]

http://support.microsoft.com/kb/956196

[jason2074]

You could also ask your Internet Provider about the problem.

[soybean]

Take a look at your hosts file and see whether it contains a line for gapfire.com.  Here's a reference which may help you locate the hosts file if you're not familiar with it: http://www.windowsreference.com/windows-7/edit-hosts-file-in-windows-7-windows-vista/

I still think you should open your hosts file and examine it since it can be used to block access to websites.  Another reference: http://maximumpcguides.com/windows-vista/edit-the-windows-vista-hosts-file/.  If a website is being blocked by the hosts file, it would block access regardless of what browser is being used, so this aspect of the hosts file directly relates to the problematic behavior you've encountered.