I've had my phone for about 6 months and it's been great, but all of a sudden I'm having an issue. When I go to the RAM manager it is using 1.5 GB - 1.7 GB, and there are a bunch of active apps running. This is new. Apps used to close by themselves and my RAM manager used to be at about 1 GB, and every once in a while there would be 1 - 2 active apps. I'm wondering if I accidentally changed a setting? Can anyone help? Thanks.