I have an LG Optimus Zip phone. For a few days now I have been getting the message Blank SDcard. Then starting this morning when I go to my home screen I get the message, "Sorry! The application Home(processandroid.process.lghome) has stopped unexpectedly. Please try again." The only button there says Force Close. I have the total unlimited package. Any suggestions on what I could do? Thanks much in advance. I am not very computer literate.