I for the life of me can not figure out how to activate the "Delete" and "Delete All" icons, they remian a dull gray, I need to backup my system however I must delete all of a disc to do it.. I even chick on them but nothing changes. I even changed the box to "ISO" , that changed the "Delete All" to change color but wouldn't stay changed. I know that it is something vary small but I can't think what it is.