I haven't heard any issues.
Do you know anything about the users? - OS, sound card etc etc.
One of the major changes was a backend specifically for vista/windows 7 - could be buggy.
But need more information.
Available playback devices:
AL lib: GetConfigValue: Key general:hrtf_tables not found
AL lib: GetConfigValue: Key general:rt-prio not found
AL lib: GetConfigValue: Key general:resampler not found
AL lib: GetConfigValue: Key general:trap-alc-error not found
AL lib: GetConfigValue: Key general:trap-al-error not found
AL lib: GetConfigValue: Key reverb:boost not found
AL lib: GetConfigValue: Key reverb:emulate-eax not found
AL lib: GetConfigValue: Key general:drivers not found
AL lib: MMDevApiMsgProc: Starting message thread
AL lib: MMDevApiMsgProc: Failed to create IMMDeviceEnumerator instance: 0x80040154
AL lib: alc_initconfig: Failed to initialize backend "mmdevapi"
AL lib: alc_initconfig: Initialized backend "dsound"
AL lib: alc_initconfig: Added "dsound" for playback
AL lib: alc_initconfig: Initialized backend "winmm"
AL lib: alc_initconfig: Added "winmm" for capture
AL lib: GetConfigValue: Key general:excludefx not found
Realtek HD Audio output
Available capture devices:
Realtek HDA Primary input
Realtek HD Digital input
Microsoft LifeCam VX-2000.
Default playback device: Realtek HD Audio output
Default capture device: Realtek HDA Primary input
ALC version: 1.1
AL lib: GetConfigValue: Key general:frequency not found
AL lib: GetConfigValue: Key general:format not found
AL lib: GetConfigValue: Key general:periods not found
AL lib: GetConfigValue: Key general:period_size not found
AL lib: GetConfigValue: Key general:sources not found
AL lib: GetConfigValue: Key general:slots not found
AL lib: GetConfigValue: Key general:sends not found
AL lib: GetConfigValue: Key general:cf_level not found
AL lib: alcOpenDevice: Created device 013C0048
** Info for device "DirectSound Default" **
ALC version: 1.1
ALC extensions:
ALC_ENUMERATE_ALL_EXT, ALC_ENUMERATION_EXT, ALC_EXT_CAPTURE,
ALC_EXT_DEDICATED, ALC_EXT_disconnect, ALC_EXT_EFX,
ALC_EXT_thread_local_context, ALC_SOFTX_loopback_device
AL lib: UpdateDeviceParams: Format pre-setup: Stereo, Signed Short, 44100hz, 1024 update size x4
AL lib: UpdateDeviceParams: Format post-setup: Stereo, Signed Short, 44100hz, 1024 update size x4
AL lib: GetConfigValue: Key general:layout_STEREO not found
AL lib: GetConfigValue: Key general:layout not found
AL lib: GetConfigValue: Key general:hrtf not found
AL lib: UpdateDeviceParams: HRTF disabled
AL lib: UpdateDeviceParams: BS2B disabled
AL lib: UpdateDeviceParams: Stereo duplication disabled
AL lib: alcCreateContext: Created context 013E8E18
OpenAL vendor string: OpenAL Community
OpenAL renderer string: OpenAL Soft
OpenAL version string: 1.1 ALSOFT 1.13
OpenAL extensions:
AL_EXT_ALAW, AL_EXT_DOUBLE, AL_EXT_EXPONENT_DISTANCE, AL_EXT_FLOAT32,
AL_EXT_IMA4, AL_EXT_LINEAR_DISTANCE, AL_EXT_MCFORMATS, AL_EXT_MULAW,
AL_EXT_MULAW_MCFORMATS, AL_EXT_OFFSET, AL_EXT_source_distance_model,
AL_LOKI_quadriphonic, AL_SOFTX_buffer_samples, AL_SOFT_buffer_sub_data,
AL_SOFTX_deferred_updates, AL_SOFT_loop_points,
AL_SOFTX_non_virtual_channels
EFX version: 1.0
Max auxiliary sends: 4
Supported filters:
Low-pass
Supported effects:
EAX Reverb, Reverb, Echo, Ring Modulator, Dedicated Dialog, Dedicated LFE
AL lib: FreeContext: 013E8E18
AL lib: FreeDevice: 013C0048
Extra debug info: export ALSOFT_LOGLEVEL and set it to 3