What to do if no sound is produced from the VAIO computer after upgrading to Windows Vista SP1?
No sound is produced from the VAIO computer after upgrading to Windows Vista SP1. Symptom persists even after the audio driver on the computer is re-installed.
Please install the upgrade programs to resolve this symptom.
For CR3 Series
BIOS Upgrade Program Version R2100Q0
For CR2 Series
BIOS Upgrade Program Version R1120Q0
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