I just got the incredible 4G a couple of weeks ago and today it started lagging incredibly slow. when I would tap the home screen it would take about 15-20 sec to go back to the home screen. I have downloaded a couple off apps but nothing crazy. I had been using slacker radio a lot today and im not sure if it was running in the back ground or not. I removed the battery and now it works fine. my question is there something I should be doing regularly to prevent this lagging?...