I've recently updated my Bold 9930 device to the new software and now the return/previous key will not work when I am in my mailbox. I have to hit the BB button and close each mail and folder that I am in. The return/previous key works in other apps but not in the messages/mailbox and its rather annoying and my device is blocked from downgrading. Am I missing something? I can't locate any settings that I can change. Any advice would be appreciated.