I upgraded my Blackberry OS yesterday. The option to lock the keyboard is GONE. I had assigned the left side key to lock the keyboard, with the previous OS version. Now its gone, and I can't select it in the keyboard setup. Its not there at all?!?! This OS stinks. Looks like lots of people are having trouble. Can't wait until the iPhone is available from anyone but AT&T, maybe even Verizon if this keeps up.