Have had my MBA 11 for weeks now and it works great so far. I have been watching HD YouTube and Vimeo videos with no problems but I noticed last night that some Vimeo vids are really choppy when played full screen. Here's a really good short called Blinky TM (for all you horror/robot fans...you'll love it!!!) that exhibits this: (Please play in full screen) http://vimeo.com/hd#21216091 Could anyone with the same MBA let me know if this problem is universal? Results from slower and faster MBA's also are appreciated. Thanks for your help.