i have the iphone 4 with 4.2.1 jailbroken for 3 days now. i have installed installous 4 and sbsettings with no problems. today i tried to install auto3g from a repository. the app installed but there was a crash and it says: spring board has crashed and its running in safe mode. press restart to return to normal mode. whenever i press restart it crashes again so i'm not unable to take it out of safe mode. what should i do?