iphone 3gs jailbroken no issues before so i was txting people when like always when i finished, i clicked the power putton to turn off the screen. it did turnit of. problem is, when i cliecked the power button again, it gave me a white screen. and i cant get out of this white screen at all. i dont see the "slide to slide: thing, HOWEVER: the only was i can access my springboard is by reseting it, and when it turns on, it gives me the "slide to unlock" screen, but i have to slide fast or else the screen turns of, and goes white when i touched a button. any clues on what cause this?? or how to fix it!!!