Hi there noob here. Recently, in my office, there is an outsider came to my pc and log his ID and even set his mail account since my pc is share with my colleagues. what mades me really mad is he was sitting rite there reading novel and is in the niddle of working hour and he is not belong to our group and somemore he has his own pc. So i was thinking about to limit the time logon, for example set the time logon 20min, then will be shut down or logoff automatic. I m using win98se. Is there a way to tweak it? or any good idea can recommend? Thanks.

Yup, he can do that by logging off or shut down the PC. So by the time i arrive i will be able to use my PC without offence him. With jus 20min logon, sooner or later he will be getting fed up and leave my PC alone.