unwelcome website

Giganews Newsgroups
Subject: unwelcome website
Posted by:  sligojim (sligoj…@discussions.microsoft.com)
Date: Mon, 14 May 2007

I keep having an http website popping onto my screen every couple of minutes
and a scipt error at about  the same frequency, they appear to be linked , it
is a chinese site and very irritating, any help much appreciated.