Hi, I don't know why but my screen doesn't turn on when I receive a text message, and I can't seem to find any sort of setting to enable that. I know for a fact that my friend's at&t s2 does turn the screen on when a text is received. This really helps if I have both the vibrate and ringtones off when I am in a class/meeting, otherwise the only way I can tell a text is received is by the little blinking led. Thanks.