i was just about to reply to a text message a few hours ago and my screen froze, it is now not responding at all, the screen appears locked and is displaying the time but when i press the power/unlock button nothing happens, i am receiving messages as i can hear the phone making noise but it cant get it to unlock or display the screen for me to enter my password to use my phone... any ideas.. (my phone is only 2 months old, regreting buying the 925 now!!):angry: