I could use some advice. I administer a couple small networks around town. I have them locked down nice and tight but not to the point that I probably should. One computer in particular is run by someone who defeats my countermeasures at every turn. My standard loadout is NOD32 and MS Antispyware (hardware firewalls in place), with weekly runs of Ewido. For the non-profit budgets of these groups, that's fine and there are rarely if ever any problems. But, as I said, there's one user who turns off the protection or clicks "Allow" any time they see a cute screensaver or a rotating wallpaper program. I'm tired of going in and cleaning this computer out every week, especially since I'm maintaining that network gratis. What can I do to deter this one person from making my life a living hell? If I have to remove one more toolbar or get rid of another trojan, I'm going to push the keyboard somewhere it doesn't belong. Your help and advice is appreciated.