I have a LX370 Phone that will corrupt files in the music player and then delete folders and playlist. When you check the Memory manager to look at the file structure, you see corrupted and/or deleted folders. I've tried another same phone at the Sprint store with no help; tried different SD Cards with no help.Has anyone heard of this problem?

Are you sure the files are not corrupted? well sometimes the files are the problem or the file types are not supported by your phone