In a case like that, it's most likely because you have a saved draft in the reply box. If you click on the icon in the toolbar that looks like a floppy disk, you'll see the option to delete the current draft.
In a case like that, it's most likely because you have a saved draft in the reply box. If you click on the icon in the toolbar that looks like a floppy disk, you'll see the option to delete the current draft.