alright... odd situation here... perhaps its happened before. the macs at a certain universites graphic computer lab have been jacked with by someone. someone keeps on messing with the prefs for the os... for the apps, dates and countless other issues. whoever is doing this is really persistant because its been happening for awhile now. the instructor would go in and change what he could change over and over again because the person (vandaL) keeps screwing with it. of course the instructor has encountered issues that he doesnt know how to remedy. so what am i asking here? im asking you all is if you know a way one can find out either who is doing it or when its being done or/and how to prevent such things from happening again? any thoughts would help really. im at a loss here.