In IE, I sometimes get redirected to sites where I don’t want to go.

I’m using IE7 on XP Pro SP3, but have the same problem when I use Firefox.

Here’s an example of what happens: I go to www.microsoft.com, and click on the link to Microsoft updates. My computer brings me to www.google.com.

It’s acting like I got infected by some virus, but I’ve scanned the computer with 3 different anti-virus programs, and nothing was found.

Any suggestions?