so ive just searched the forums for my problem...not there. i just bought a ps3 yesterday, and i just dowloaded the new medialink. im on a wifi on my ps3, and same as my macbook. i install medialink, start 'sharing'...nothing happens. goto the devices tab, my ps3 isnt there. i go on my ps3 to 'search for media servers' ...nothing. upnp is enabled on all devices...what gives??!!