Cannot go to www.livejournal.com on this computer but can go to it on the computer that is networked upstairs. Why is this? And how can I fix it. This comes up http://search.ninemsn.com.au/dnserror.aspx?FORM=DNSAS&q=www.livejournal.com and I click on the link to the same website from their and then it says "page cannot be displayed" and at the bottom "Cannot find server or DNS Error
Internet Explorer"  this is really annoying even though I don't go to that website much, I do find it very annoying that something is stopping me and I worry because I do internet banking.

Try to clear your internet cache.

If you go to start - run - type in CMD & <ENTER>. Now at the command prompt, type in ping livejournal.com & <ENTER> - do you get a response?

Yes I get a response, don't worry I have fixed it now, I deleted the hosts file, someone had changed it for me cause I was posting some crap they didn't like, but hey it's a free country.