1. System restore back to when it was OK.
2. Run IE (7 or without add-ons (that's a choice somewhere in Start>Programs). If that works, find the culprit using add-on manager. Just an experiment.
3. See how another browser (like Chrome or Opera) performs. Just an experiment also.
I am facing this problem for past couple of days. Whenever I click on search links provided by google, It takes me to random sites. It doesn't not happen all the time though. I have Windows XP Professional Edition w/ latest Service pack. Automatic update is ON. I am using AVG free edition along with Malware bytes & Yesterday, I also installed Spybot search & destroy.
All these anti virus & spyware do not detect anything. I don't know what can I do to get rid of this problem.
Experts, please help.