a lot of people have suggested i get some spyware stuff (key loggers, spy arsenal) to check and see if someone has been using my computer to view porn. however, how easy would it be for someone to discover this stuff on my computer? i don't know much about computers, my partner does pretty much all the setting up things. i do know i have norton anti virus installed on my computer -- will this detect things that like keylogger of spy arsenal stuff? or could the person use a different download to check and see if stuff of a similar nature is present on the computer?