Do you have anything in that folder on your external_sd card? You need to verify where TiBu is actually backing up to. You could do this two ways: 1) back-up an app (don't do them all...one is fine). Then go to the "mnt/sdcard" directory and see if there is a newly made "TitaniumBackup" folder. 2) Copy your "TitaniumBackup" folder from your "external_sd" directory to the "mnt/sdcard" directory. Go back into TiBu and see if your restore data is accessible. I don't think TiBu can be set to save outside of that "mnt/sdcard" directory...I think that is the default location.