I have the old iphone with the new 2.0 software installed. I've just purchased and downloaded a couple of iphone apps from the Apple Apps store and they do not work. I press the icon, it goes to the application and then it closes and returns to the home screen. It does this every time I try and launch the application -- it doesn't work, it shuts itself down and returns to the home screen. I've tried restarting my iphone. I've re-downloaded the apps, but it does the same thing. Anyone know how to solve it?