I previously had a plain old Droid. I used the SD card as my computer data backup and it worked great. My X has twice the storage capacity but I can't seem to use it. I had already transferred about 2GB of my 16GB available. I tried to add my pst file (Outlook data) of about 7GB and it won't try - a message appears telling me there isn't enough of space available. Anyone have a clue why and how to get around the issue????????