Photoshop shows a row of transparent grid when in fit on screen mode. It is currently appearing on the left and top edges. However, when I zoom in, the transparency grid is gone and the image looks fine. I filled in the background to be safe. clicking control all and using the paintbucket tool. I also clicked multiple times on the edges to be safe, but the transparency grid still shows. I am preparing to send this document to be printed, so I don't want a small edge of white when this image gets printed. I feel this is a minor bug, but should definitely be looked into.