Same here... WTF? I've been missing all my emails and calls while my phone is sitting at my desk here at work... Sure it vibrates (which that even sucks balls), but at least when I get back to my desk and I miss stuff, it's a PITA to keep hitting the power button to unlock, swipe and then go through all my Mail icons...
Man, before with my POS BBPearl I was getting notified too many times and double/triple emails, but shiet, at least I knew about it!
I went into the Programs/Settings/Sound & Display/Notification Flash. Everything is checked...
Thanks...