I had to re-jailbreak my iphone 3g due to some issues. If you want to know what my issue was please go to a thread called "please help with a theme I installed thru cydia" Anyways, after I re-jailbroke my iphone, I have noticed the iphone goes into safe mode alot. After I close any app...it doesn't matter which app (facebook mail, camera, etc), I get a message "We apologize for the inconvience, but SpringBoard has just crashed. MobileSubstrate /did not/ cause this problem; it has protected you for it. Your device is now running in Safe Mode. All extensions that support this safety system are disabled. Reboot (or restart SpringBoard) to return to the normal mode. To return to this dialog touch the status bar. And then I get 3 options: OK, Restart or Help.". Another issue I am having is I noticed a lock symbol in the middle of the statue bar. I did a search and the only thing I came across was for the Iphone 4 and I have the 3G. Last issue I am having is when I go into cydia, I am getting the "Essential Upgrade" and no matter if I hit "Upgrade Essential", "Complete Upgrade" or "Ignore", I still get this message. Any help would be appreciated on these 3 issues.