Probably have a CoolWebSearch variant present on their system. This is spyware and best dealtwith by a spyware removal tool such as <A HREF="http://www.lavasoftusa.com/" target="_new">Add-aware</A> or <A HREF="http://www.safer-networking.org/" target="_new">Spybot</A> there are other progs that will also help, just do a google search for "spyware"
Stadium of light and Urs Meier still couldn’t see.