Hi. Thank you for the advice- I just did this and it didn't work. If the image is full screen and I hit delete, it disappears and moves to the next image, but when I exit and reopen the folder, there it is again. If I select a thumbnail and click the trash button in upper right corner, it gives me the error message, I hit ok, then the image goes away from thumbnail list, but again, when I reopen the folder, it's back (insert scream)