Hello, My stratosphere at this timeis using about 340mb out of 370mb of available RAM. I want to clear this out. I would first like to know exactly what I will be erasing when I do this. And what I need to back up. Right now the phone is running very slowly. I also have about 5.6gb left out of 14gb in total momory. However, I plan to get the 32gb sd card eventually. Thanks, I would have done a forum search for this but my phone is acting so slow I'm lucky to get this far.