03-01-2013 01:23 AM
If you are having problem you can try reinstalling BlackBerry Messenger again, for that Delete BlackBerry Messenger from your device :
KB10040 : How to view or remove installed application on a blackberry smartphone
Then perform a battery pull restart by removing the battery while your device is powered on , after reboot from your BlackBerry browser browse to www.blackberry.com/bbm to download the most recent version available for your device .
Try it and see if that helps .