I've had two 13" MBPs, one mid-2009 that was a base model that I upgraded to 4gb ram - great laptop. I bought this 2010 base model about three weeks ago to replace my 27" i5 and I've noticed it stutters all the time. I'll scroll down a webpage and at times it will just completely pause before continuing to scroll. I'm typing this post right now and as I type it will sometimes hesistate before finishing displaying what I am typing. If I watch 720p videos every 20-30 seconds the whole video will just pause and after a second it will continue to play, albeit playing the last second quickly before catching up to current. What the christ is going on with this thing? I've heard other complaints of this happening, but not too often. Am I crazy, is my system broken, or is this just common on the new machines? Sitting at the Apple store to talk to a 'genius' isn't really in the cards, as the local store is constantly asspacked with hour plus waits.