I got the new FrontRow with Bonjour running on a G4 Cube. I am able to stream content from the iMac upstairs. TV shows purchased thru iTunes looked ok on a 32" TV but video podcasts were unwatchable--they kept stopping and starting. Is this just the fact that the 450mhz G4 in the Cube can't decode the H.264 or MPEG4 used by the video podcasts? But wouldn't the iTunes TV shows be the same format? The podcasts were dl.TV and diggnation. Any clues?