why is it when i turn on auto brightness that if i go on a website that is mainly white the screen gets brighter and if its mainly black the screen goes dimmer? its annoying specially with the dark ones. Does anyone else get this? on another note, my MBP went doolaly today, it was reacting really slowly to everything and the apple logo in the top corner went to a fuzzy lines like static on a tv. then my trackpad stopped working. eventually i restarted and its fine. stil its a bit random, never had it before.