Ventrilo + Mac = No sound?


Posting Commander
When im on ventrilo on my Mac Book Pro i cant get any sounds and it keeps comming up with this error when i join the rooms:

Failed to get encoder for specified Codec.

This client platform currently supports only the Speex codec. The server and/or channel is configured to use the 'GSM 6.10' codec.
Does anybody know how to fix this problem? :0