Unwanted search engine

From: Steve Shields (stejenky_at_pacbell.net)
Date: 06/16/03 

Date: Sun, 15 Jun 2003 19:01:47 -0700

Within the last week, a program has entered my computer
wherein every time I hit the internet button it does not
come up yahoo which is my chosen engine but
rather "searchbus". When I go into properties and change
it to yahoo it stays there until I exit the net. Then the
next time I go on, even though the computer has not been
shut down, "searchbus page comes back up and I must go to
properties again. I can't find the program in my system
to dump this garbage. Can anyone help?