I set my alert notification for all types of messages to " always". Then a few times, I'd feel the vibration but no tone alert. Upon checking the settings it would be at " out of holster"!!! without me changing it to so. This is becoming annoying.
i would suggest going through all of your settings and verifying that they are all the way that you want them. other than that, perhaps upgrading to a new version of the operating system (a leak as listed on the main blog page for this site) might solve your issue.
