i've got a problem.
The App store keeps logging me out, and when i try to start an application, it crashes on startup.
i always need to a) update an available app on the appstore (to log me back in), or b) buy/download a free app (to log me back in).
when i did this, and the login datas are "back on the iphone", the app store applications run again perfectly.
so, why does my iPhone keeps logging me out?