Trying the beta with Ubuntu 12.04 x86_64 on Core 2 Duo and Nvidia 320M with the Nvidia drivers.

When running without PulseAudio (only ALSA) the terminal fills with

An internal OpenAL call failed in audio.h (296) : AL_INVALID_OPERATION, the specified operation is not allowed in the current state
and segfaults on exit, but otherwise runs fine.

TwinView with two monitors, no problems there. The frame rate was at 60, but it seems like it dropped in waterfall areas.