HELP : No sound in Z60m running Vista

[ubergeek]

Hi,
I have Z60m running Vista but I am not hearing any sound at all.
The property of the volume shows "SPDIF" as a device , and everything appears to be functioning but I am not hearing anything.

Am I supposed to be seeing other device ?

Thanks in advance.

[ubergeek]

Apparently, the driver is built into OS.
I uninstalled SPDIF driver manually and rebooted the machine.
Now I see "Speakers" as well as "SPDIF" and everything works fine.