At work now so I'll test this with my home connection tonight, but I'm getting a wierd 480p stutter with youtube videos which does not occur in 320 or 1080. Not sure whether this is a glitch with Lion which I installed this weekend so I'm asking if anyone else has noticed this? I tried it with two videos. If it turns out to be my MBA and noone else has this issue, would I be able to re-do the install if I did it from the app store (i.e. the new distribution/install method for Lion)? Thanks.