Why am I getting redirects to Errorsafe.com when I visit certain sites?

It’s really annoying. I’ve run the Trend Micro online scan to check I’m spyware free, I’ve been a good little microserf and done my windows update, and I’ve updated my java from sun.com. The full URL is:

http://www.errorsafe.com/pages/scanner/index.php?aid=flow&lid=intl&ax=1&ex=1&ed=2

It usually happens when I go to a bit torrent site such as:

http://www.demonoid.com/

Anyone else get this?

It is spyware, and here are the instructions to remove it:

http://virusinfo.prevx.com/viruscenter.asp?GRP=4785000015

How to use TrendMicros housecall antivirus