Hi all, This may be obvious and i may of just been a complete idiot (the later more likely) but i just thought id share this with you as many on here seem to be having the same problem. I was having trouble streaming hd content from my airdisk to my mbp as it kept going jerky even when i was running on 5g n connection. Anyways after many painfull hours of trying every combination of set up i found the problem. It was the ****** freebie usb hub that i was using to plug both my printer and hard drive into the aebs. i have unplugged it and now all my hd movies stream perfect. Hope this may be of use to some one.