Sir, I would like to know something, if you are on a LAN, then doesn't your pc log you off after a certain amount of time? It also sounds to me that your IT dept. hasn't set up your pc properly in order to protect your computer from prying eyes. You see there should be multiple accounts of the pc, then let's say you walk away for about five minutes then when you return you should have to hit CRTL+ALT+DEL. So you should make sure that your pc logs you off quickly. Although this is a pain in the _! It is the best method to secure your pc.