I have done the jailbreak with no problem, installed the instaler and instaled some apps with cydia and they are all working, but now everything I try to install from the itunes store installs but does not work. For example: I have installed fring, when i click in it´s icon it open the program opens and afer about one second it closes itself!! The same thing goes to stanza, wheatherchanelapp, everything I try to install from applestore!! I have already tryed to reboot the itouch, having to use the computer to restart it, sync with itunes and nothing solves my problem. PS: I have used the Cyw00d GUI method. Please help me!!