I've had an unlocked 8gb 2g iphone for about 4 months now, and I love the phone, best I've ever had. I have cydia installed, along with installer. I've used them both a good amount of times. Earlier today I downloaded Kate from installer, which I just found out is not the best app to install? anyways now my phone screen is frozen(more specifically call screen), I can't use my keypad, nor dial voicemail, etc. I can only call directly from my contacts. I tried removing installed apps from Installer, also tried rebooting the phone multiple times. I'm no technilogical genius, so help would be greatly appreciated.