Have any of you had the experience of a tv show audio suddenly stutter and then the sync of the picture and sound are gone. do you think that the size of the itunes library has anything to do with this phenomena has anything to do with it? I have a G4 upgraded to 1 gig and 2 gigs of memory, the hard drive is external and is 300 GB,OX 10.4.9 thanks for listenening paul