I jailbroke my iphone about 2 months ago and this is my first time ever doing such a thing. Anyways...As of about 3 weeks ago, at random my phone screen will go COMPLETELY black when I receive a text message. I will be listening to music and I feel my phone vibrate or hear the tone and go to check it and my screen is black, but the phone continues to function at normal, other than I can not turn it on or off. I then have to do the reset, using lock button & home button. This restarts my phone and then I am also forced to respring as my springboard has crashed. I go to look at the text message that I got and ALL my texts have been erased. I am considering just restoring my phone and forgetting about the idea of jailbreaking, but I really do enjoy having my phone jailbroken. How can I fix this? Running Verizon iPhone 4 with 4.2.6 on I believe 4.2.1 Greenp0ison. Let me know if I need to clear anything up. This has been really frustrating and I would love to have my phone work normal in jailbreak mode.