While I have been categorically pleased with my new RMBP, once every 2 days or so the entire input will completely lock up for about 3-5 seconds. Certainly not a huge problem but very odd. It is not a "stutter" in the animation or dropped frames but applies only to the mouse/cursor/keyboard. Not a RAM problem it seems or a CPU load problem as far as I can tell... I have seen this occur under all variations of usage. Anyone had similar experiences? Known issue?