Bridge CS4 lets you quickly get a full-screen preview of any image. Select the image and press the Spacebar or select the Full Screen Preview from the View menu. This opens the selected image in a full-screen preview. Click on the image and it zooms to a 100% preview; Control-click (PC: Right-click) and drag on the image to move around; press the Arrow keys to move between images. Pressing the Spacebar a second time returns Bridge to the previous mode.