text: a woman got to my computer, set herself up on yahoo messenger.   how do i cleanse her from my computer? all her messages show up on my compute. i'm a novice at these things, seems like it should be easy to delete her hi paladin, the reason is that her username gets automatically signed in, each time you start the messenger. the username and password are stored on your computer and 'automatically sign in' option is enabled. do the following to remove it:  (1) start yahoo messenger (2) press control d (both simultaneously). alternately,  go to messenger menu and then press sign out option.  mission achieved! now sign in using your username and password. hope this answers your query!