Problem with Vent on Macbook

[kenje]

I have try to use the Vent for Mac client on my Macbook, and the problem is I cannot hear from nor talk to another in the server. I can see my friends' speaker turn green, but no voice is heard, and my speaker will keep being red and muted though I am shouting in front of the computer. I am using the Macbook built in mic and speakers, the weird thing is when i try to monitor the test with Speex in the setup page, I can see the numbers flashing up and increasing while I increase my voice in front of the computer. So I guess the mic is working just don't know why the vent is not working. Thanks for reading and please help me if you know what's wrong.