What happened is that I tried to knife a hacker who had infinite health and ruined a perfectly clean game. So I decided to knife him, and what happen is that instead of knifing him, my screen just got stuck, not frozen, but stuck. I can press the home button, go into the NitePR database, and everything. Turning off WLAN switch still shows the screen. Its as if I'm looking at picture. NO sound or Anything.

Is there a code the can reverse this? It happened to me so many times...