I'd recommend running an Anti-Virus program even if you dont open porn attachments (I dont but I still checked). I ran one and it found quite a few bad files. I deleted them? And now my PC is remarkably fast. An ancient PC going remarkably fast. Can we say "WHUUUUT"?
i thought this was interesting.... http://blogs.washingtonpost.com/securityfix/2006/02/virus_naming_st.html