problem with navigating images with arrow keys

Try to use the arrow keys to navigate the images (mostly in the development mode). After several clicking of the arrow key, or accidentally holding on the key for a couple of seconds, the images will start to move to the next image 'automatically' until the last one of the list, and there is nothing I can do to stop it. Same thing happened when I try to quickly move around the history list, suddenly it started to move all the way to the end.