It happens quite frequently, your computer is not infected but your cache/cookies are.
First look in your history and try to find the url of the redirecting site. What I mean is there is usually a pause between TS and the eventual
redirect. Try to grab that URL and send it to admin. Even better is if you can catch it and stop it as it is redirecting so I to capture a
screenshot. Staff always wants to know when that happens so they can track the ad service that is doing that.
Then do a browser wipe: history, cookies, cache, malware/spyware removal etc..
There are many software applications that do that.
That usually clears it up for me.
Hope that is correct and that it helps.
Edit: Try also to remember what thread/page you were on when it happened. The more information you are able to provide the staff the easier for them
to track it down.
[edit on 13 Jan 2009 by schrodingers dog]