No, I haven't done any overclocking. What I did do was to go into the registry under "Special poll interval" and change the time between online synchronization from 604800 minutes to 43200 mins. I know that the math doesn't work out but it is now set to synchronize every 12 hrs. This doesn't really address the fast clock issue but it will recalibrate it often enough that I can live with it. I really don't want to mess around with any more rinky-dink software than I have to (Atomic Clock Sync etc.) so this will have to do for now.