My ipad (first gen) is jailbroken, however, Cydia doesn't respond when clicked to open( never has), the screen rather does a jerk motion/flash, then nothing. I tried to run jailbreak again to re install cydia but the message I received was "this ipad is already jailbroken" Is there somewhere to get just a copy of Cydia? RedSnow was used to jailbreak. IOS 5.1.1 Thanks in advance for any help with this issue.