I really need help with this; I've searched "iphoto won't open" and many other variations of that, but I haven't found anything the same as my situation. When I click the iPhoto icon on the dock, it bounces once... and then stops, without opening or doing anything else. It does the same if I open it through finder->applications. It's driving me crazy!! I have a MacBook with Tiger OS X 10.4.11, iPhoto 7.1.5 and NO tech experience... please help?