I feel silly asking this, but its driving me crazy! I just made the switch to OSX last month. I've used Windows for about 10 years now. I'm looking for a photo viewer application that has these 2 simple options. There may be something in the Preview preferences I have to check, but I havent been able to find it. All I want is something like Vista's photoviewer. I want an app that lets you zoom in on a picture with the scroll wheel, and then left click and drag to pan around. Thats it. Simple enough, but I cant figure out how to get Preview to behave this way. Any other suggestions? Thanks!