Well, a while ago I got a DSTT and I could barely play games because they would always freeze. I could only get Tetris DS to work. Now I got a new MicroSD card and I can play more games for a longer amount of time, but it still freezes enough times to annoy me. For example, I can't get past the "New Character" stage on Pokemon Pearl. It always freezes some time before I can get a chance to save. Any ways to reduce the freezing?