Ok so I have a 16gb card in my phone, I started the phone with it in it. I installed many apps onto the card and everything worked great. I then let the battery run to minimum and when I tried restarting it after it charged it kept rebooting. I took the sd card out and it started normally. After putting the card back in I now get a notification that says "blank sd card or has unsupported filesystem". although I can pull up all my apps and they all run just like normal. Any idea what to do? it gives me the option to format the card. All my apps on the card are from the marketplace other than swype. What should I do?