I plug in my phone to charge, and put on Slacker, and a couple of minutes later I notice my phone screen is moving, things are being entered, phone numbers searched, etc. I try to use the phone, and it's like I'm doing battle with someone else who is using it. I yank the battery, wait a while, and when I reinsert the battery, all seems fine. This has happened three times now. Is my phone compromised? What can I do to keep this from happening?