Since ultrasn0w is out I finally updated to 3.0 yesterday. I did a complete restore cause I wanted to start a-fresh with what apps and such. Everything worked fine. I jailbroke it and installed ultrasn0w from Cydia etc. After an hour or so I was gonna go into Cydia again and it crashed back to the springboard. I tried opening settings and the same thing happened. I then restarted the phone, slided (slid?) to unlock and all I got was a black screen with the background to the dock on the bottom. The only screen I could go to was spotlight but the only thing present were my contacts. I tried searching for Cydia and no match. Phone numbers weren't callable as it said something about some directing problem. I had to restore again and now everything's working fine again. Anyone had the same issue?