Also, on the section where the Zoom buttons are (lower right hand corner) is a hand that you use to drag the screen around. Before you do this, if the camera/view is where you want it, use one of the saved view buttons (don't remember what they're actually called ... :P :) to the left of the nanopreview window. That way, once you get everything set to where you want it, then you can go back. Also, the x-z, x-y, y-z movement controls right above the trackball will do the trick as well.