I recently just upgraded my pc with a new processor. I went from an AMD Athlon 64 3200 to a Athlon 64 4000. I also added a new 160gb SATA II from an 120g IDE. I have 2gig of ram installed and my system seems to lag more now then before. I also installed norton internet security 2006 when I had 2005 in the old system. Any suggestions as to what may be wrong or what I could do to fix this situation?