Welcome to the forum. You need to wait till the photo loads completely. You will see a check mark when its ready. Its right next to the Trash can and the reply button. Once you see the check mark, post the reply. 
Welcome to the forum. You need to wait till the photo loads completely. You will see a check mark when its ready. Its right next to the Trash can and the reply button. Once you see the check mark, post the reply.