kat et al...had the same hijacking browser trojan on my computer as well...The free version of AVG (version 6.0)found it and eliminated it, and I've not had any problems since. Can't remember specifically what the trojan was called, as AVG found about ten other viruses along with the offending file! - but it might've been a flavor of the virus called "second-thought" (I think there is an "A" version and a "B" version)) that was causing the hijacking problem.