I can't seem to get my BB Messenger to emit a tone ONLY when I get the PING message and not a regular message.

I've tried to modify the profile settings and set a tone with HIGH volume for Blackberry messenger ALERTS but it doesn't seem to work as intended

When I set to have ALL blackberry messenger messages emit a tone, it works fine but I want only PING messages and not regular ones...

I've tried this both on my bold and on a curve at 4.5.something and none of us could get this work.

Is this a bug?