hi there, i got myself one of these fancy appletv things, which replaced an aging mac mini as my multimedia hub. but it is constantly disconnecting from my iMac (which is set to stream), and then randomly failing to reconnect. i never once had a problem with the mini. i'm running a pure 802.11n network now (off a new airport extreme base station), and expected the performance of a dedicated device to be better than the mini. also, it cannot keep up with movies that i've encoded as h.264 4000kbps (PAL 25fps 720x428 and other similar resolutions) is that to be expected, or is something wrong there too? any help would be appreciated, or maybe i've got a dud?