Once you have loaded the picture, DO NOT click off of that screen or preview. Once picture is up on your screen, then you can change screens, but not before.
It is the same as posting a thread or comment on here: if you hit SEND then hit the back button before the SEND part is finished, you will have a double or triple or... post.
We must learn to be patient for just a few seconds before going on to the next thing.
One more thing - please be sure you turn the pictures the correct way to view them. When folks post pics on here that are sidewys, I don't even look as it is very irritating and hurts my neck to strain to look at them. YOu can turn the pictures by way of the arrows on teh program you are using. It may take you more than one turn to get it correct. Have fun.