Hey guys, I have a black 32gb 3gs and have this problem of the lock screen going white/blank randomly. It's not a huge problem but this never happened with my 2g iphone. Basically, I hit the lock button to look at the time and at random times, the screen just goes white/blank. If I just press the lock button again to turn off the screen and press it again, it goes back to normal. Anybody else have this problem?