Sorry to start another thread so soon but I really cannot decide if I should get a Macbook air or not. Many people say that watching flash movies can really slow the computer down and that opening a few apps does too. I really noticed noticeable stutters in graphical tasks like Cover Flow and spaces too . I was wondering, why is the air like this? My sister has a $500 Acer with a 1.6 ghz PENTIUM M and ONLY 1 gb of ram. The air's specs are obviously superior to those of the Acer but when using the Acer, it doesn't lag when watching Youtube videos nor stutter when scrolling web pages. I even produced many videos for a play with a lot of effects and music using Windows Movie Maker on the Acer while one user said that they wouldn't even try using iMovie on the air? What makes the air's performance so different to PC laptops? Before now, I thought 1.6 ghz was enough for my needs. After reading these forums I'm starting to have doubts. What's going on?