This is a pretty new MBP (check signature for specifics) I have noticed while using it that the brightness will randomly dim sometimes only one bar sometimes 3 or 4 bars. This is while it is plugged in and charging, not sure if it does it not plugged in. Also, I mentioned this on another thread but when I am scrolling sometimes it gets extremely jumpy. For example if I scroll down it will jump back up and then down as if I were quickly scrolling my fingers up and down on the track pad... it is quite annoying. Anyone know what the heck is up with this? The other thing I noticed is that sometimes when I change the brightness it will jump by two bars on one tap every now and then. I reset the pRam and that stopped, but still jumpy scrolling and still random dimness... am I missing some setting I need to turn off?