I have a HUGE PROBLEM!. I tried jailbreaking my iphone 4 iOS 5.1 with redsn0w, however, every time i enter DFU mode, and the next step starts (exploiting limera), red sn0w crashes. I get this report : "the program does not respond". I tried changing the affinity for the redsn0w process by unticking cpu 0, but the same thing happens. I even tried changing the compatibilty settings to windows vista and windows xp(sp2) but still no luck. This is the first time i've encountered this problem ever since i started jailbreaking my iphone... I NEEEED HEELLP PLEASE!!