No output, mic works fine

[mirvel]

I've tried to use ts3 (beta22 x86) for the first time today, it started fine, got through the wizard, etc. Messed with the sound options (using OSS, set to /dev/dsp). Mic works fine, but playback does not.
They're both set to the same device, ossmix shows that a channel is occupied

vmix0.pcm1 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB) ("ts3client_linux")

While messing with the playback options

2010-07-29 21:02:57.426289|INFO    |PlaySoundSet  |   | Invalid playbackDevice in Config File, (profile, playbackDevice) = (Default, /dev/dsp)

shows up in the console.

Any ideas what should I do? Maybe there is something obvious I've missed?

(Console output shown while messing with ts3):

2010-07-29 21:02:32.833232|INFO    |MPSingleton   |   | Detected local codeset to be: UTF-8
2010-07-29 21:02:32.837113|INFO    |              |   | Logging started, clientlib version: 3.0.0-beta22 [Build: 11315]
2010-07-29 21:02:33.332168|INFO    |ClientUI      |   | Failed to init text to speech engine: 3584
2010-07-29 21:02:33.333792|INFO    |ClientUI      |   | TeamSpeak 3 client version: 3.0.0-beta22 [Build: 11315]
2010-07-29 21:02:33.335037|INFO    |ClientUI      |   | Qt version: 4.6.2
2010-07-29 21:02:33.336175|INFO    |ClientUI      |   | Using configuration location: /home/mirvel/.ts3client/ts3clientui_qt.conf
2010-07-29 21:02:33.827723|INFO    |ClientUI      |   | Last update check was: Thu Jul 29 20:26:19 2010
2010-07-29 21:02:57.426289|INFO    |PlaySoundSet  |   | Invalid playbackDevice in Config File, (profile, playbackDevice) = (Default, /dev/dsp)
2010-07-29 21:03:02.599500|INFO    |PreProSpeex   |  3| Speex version: 1.2rc1
2010-07-29 21:06:37.116433|ERROR   |PlaySoundSet  |   | Error playing test sound

[Volvox]

Although I don't know what all those lines of code mean, I have a similar/the same issue.

I am on Ubuntu, and I downloaded the Linux version of TS3. My microphone works fine: It works on my windows XP (same computer) and even on Ubuntu when I record sounds with Sound Recorder. My mic is built into my netbook. A person on the TS3 server I use said they could hear me, but it was extremely faint. So perhaps this is an issue of turning up my input volume in TS3?

Any help is appreciated.

[mirvel]

Just to make things clear: mic works in ts as it works fine in other apps, but i'm not hearing what others are saying on teamspeak.