Why can't the built-in speakers project any sound when Audio Driver 6.10.5614.0 is installed?
When Audio Driver 6.10.5614.0 is installed, the built-in speakers cannot project any sound.
This symptom is caused by the design of Windows Vista which sets the SPDIF as predetermined device.
Please refer to the steps below when this symptom occurs:
1. Go to Control Panel -> Sound property.
2. Set Speakers/Headphones as default device.
3. Click OK.