hi guys & gals, ive just upgraded my mbp from tiger to leopard. i noticed the appearance of a 'SHARED' section in finder with the item pc139818592325 to which im connected to as Guest. it contains the SharedDocs folder. it contains a number of pictures, music files some of which are dated way before i bought the mac. i don't remember ever downloading or copying these files/folders in there. did these come with the leopard upgrade or did i 'pick up' something nasty? i hope its not the latter. pls advise. thanks.