my memory card? So, I have a Motorola Rival with Verizon what does the "USB Mode" mean when it tells you if you want it in "Media Sync Mode" or "Modern Mode" does it have to do with the memory? because I bought a 4GB memory card but yet I don't know how to set it up, when I turn on my phone it says "Memory Card Inserted" I don't know what to do to stop it from telling me I have it in. How do I set it up?