A few weeks after installing Berry Buzz I found my BB not making any sounds when emails were delivered or when calendar reminders were being shown (did not get a chance to test calls). Not reminder sounds but the actual initial notifications!

I tried changing profiles several times and checked settings. No change. The LED would flash but that was it. It took an ALT/SHIFT/DEL reboot to bring the sound back.

I can not say with certainty that Berry Buzz caused this. Are there other known causes of this problem?