Standard comments about spyware and adware. Get that stuff off your
computer. If you have not installed Spybot Seach & Destroy, then move
fast. http://www.safer-networking.org/
Then go to this site and follow the guidelines to change the default
brower.
It does not need installing - simply unzip and run the EXE program. It
is easy to use. It will find the hijackware DLL files, and give you
the ability to disable them.