block a computer from downloading programs off the internet. Here's the problem. At work, there is a "community" internet computer that everyone uses and they have yet to pass up an executable that they haven't downloaded (even though they've been warned against it). They put all kind of stuff such as WeatherBug, Gator, ICQ, ect. The sys tray goes halfway across the toolbar and I spend half my time removing these programs and working on the computer. We are replacing that computer and I want to put a stop to it. If there isn't a way to stop it in IE, is there a program available where I can put a block on program downloads with perhaps a password. I purchased NetNanny 4 today, but it doesn't seem to be the answer. Thanks!

DJones