I don't think it's supposed to work this way, but when I click on the link for my Image Gallery, I get just a blank page. No header, no sidebar, no images, no nothing. Even the source is empty. I was also having trouble trying to add an image through the Create Content link, and thought the two issues were related, but I did get my image up. But my image gallery is still blank.
I contacted Tom Owad & he has the same blank image gallery page. So apparently it's not just me.