I just received my Optimus S yesterday from Sprint and currently have the 2GB SD card from sprint in it. I had no problems with it yesterday and now all of a sudden today I keep getting messages saying that my SD Card has Unexpectedly Been Removed then it says something about removing it and then it says preparing.... I know this has been an issue with other phones (I did some research before posting) but couldn't find anything specific to the Optimus. Is this something that others are experiencing? Should I take it back to Sprint? Thanks in advance.