[jeyount]

I have a Sony Vaio with a Sigmatel driver when running under XP. In Vista, build 5456 it installs the MS High Definition Audio Device. When this is installed I can just barely hear any sound out of the speakers. Checked and all settings are at 100%. If I try to install the old Sigmatel driver from XP then I have normal sound, but when trying to open Control Panel it always does not display any icons and locks up. The only recourse is to restart Explorer.

Sony Corporation VGC-RC110G R5041763
Enclosure Type: Desktop
Processor a Main Circuit Board b
3.00 gigahertz Intel Pentium 4
16 kilobyte primary memory cache
1024 kilobyte secondary memory cache Board: Intel Corporation PRAGUE AAD12395-206
Serial Number: BTPR54401875
Bus Clock: 200 megahertz
BIOS: Intel Corp. PR94510J.04T.0115.2006.0417.1135 04/17/2006
Drives Memory Modules c,d
446.45 Gigabytes Usable Hard Drive Capacity
338.59 Gigabytes Hard Drive Free Space

Installed Memory

Slot 'J6H1' has 512 MB (serial number 0x050BBC12)
Slot 'J6H2' is Empty
Slot 'J6J1' has 512 MB (serial number 0x050BBC10)
Slot 'J6J2' is Empty

Controllers Display
ATA Channel 0 [Controller]
Intel(R) 82801G (ICH7 Family) Ultra ATA Storage Controllers - 27DF NVIDIA GeForce 7800 GT (Microsoft Corporation - WDDM) [Display adapter]
WDE LVM-37w1 [Monitor] (37.0"vis, September 2005)

Bus Adapters Multimedia
Intel(R) 82801GR/GH SATA RAID Controller
Microsoft iSCSI Initiator
Intel(R) 82801G (ICH7 Family) USB Universal Host Controller - 27C8
Intel(R) 82801G (ICH7 Family) USB Universal Host Controller - 27C9
Intel(R) 82801G (ICH7 Family) USB Universal Host Controller - 27CA
Intel(R) 82801G (ICH7 Family) USB Universal Host Controller - 27CB
Intel(R) 82801G (ICH7 Family) USB2 Enhanced Host Controller - 27CC Sony MPEG RealTime encoder board

Communications Other Devices
HDAUDIO SoftV92 Data Fax Modem with SmartCP