I've had my S3 for about a month and am loving most of it. I'd like the picture messaging slideshow thing to be fixed asap but that's a whole different thread. Anyways, I've noticed my S3 is lagging when backing out of apps, switching to homescreen, opening apps and even the swipe to unlock lags sometimes. As of right now I'm using 551 MB of ram with 1.16 GB free...is that normal? Should I stop some of these processes running that I'm not even using? (Score mobile or Maps for example) Thanks y'all.