Perspective warp zooms in on my image after place grid and click "warp"

I'm editing a picture of a painting and the perspective if off a little, so I usually fix these issues with the Perspective Warp option. I use it frequently. Today though, when I place my grid and click the warp to fix to perspective, Photoshop zooms all the way in to a small corner of the painting with the grid still in place though. When I move the points of the grid, it changes the perspective of the corner, NOT the whole painting like I need it to do! HELP!! This is a huge incovenience and I need to have this done ASAP!