expert opinion needed! i am going to buy a monitering program but want opinions on which program is best at being undetected by those being monitored! i have a computer smart teenager as well as a computer smart spouse -- and i am not computer smart at all. though i am becoming a bit more knowledgeable from utilizing experts exchange. i know that my partner has recently downloaded (and maybe always has done so) a free trial of spybot. i am pretty sure that he has never actually spent any money on a spy program though -- just free downloads. i am going to buy one for sure, so i would appreciate any opinion on what anyone thinks does the best job of HIDING itself from the users on my computer. i have looked at spector pro and pc activity monitor so far, everyone promises to be "stealth and undetectable".....so, anyone have an opinion? or another suggestion? i am looking to catch my teenage son or my spouse doing improper activity.