What am I doing wrong

On my old Windows 7 when I opened a folder in My Documents with heap of photos, I could open the first photo then just hit the arrow keys left or right to progress through the pics. Now in Windows 8, I open a photo and push the right arrow key and nothing happens. WHY?

not sure why ,but its not a win8 issue because the arrow keys work for me .what program is it using to view the pictures

Make sure the photo viewer program has the focus. Click on the title bar then try the arrow keys again.