after some poking about the registry i've come up with the following (potential) solution:
Code:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Hardware Profiles\0001\System\CurrentControlSet\Enum\PCI\VEN_13F6&DEV_0111&SUBSYS_3741584D&REV_10\4&13699180&0&4048\DirectSound\Speaker Configuration]
"Speaker Configuration"=dword:00000006
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Hardware Profiles\0001\System\CurrentControlSet\Enum\PCI\VEN_13F6&DEV_0111&SUBSYS_3741584D&REV_10\4&13699180&0&4048\DirectSound\Speaker Type]
"Speaker Type"=dword:0000000b
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Hardware Profiles\Current\System\CurrentControlSet\Enum\PCI\VEN_13F6&DEV_0111&SUBSYS_3741584D&REV_10\4&13699180&0&4048\DirectSound\Speaker Type]
"Speaker Type"=dword:0000000b
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Hardware Profiles\Current\System\CurrentControlSet\Enum\PCI\VEN_13F6&DEV_0111&SUBSYS_3741584D&REV_10\4&13699180&0&4048\DirectSound\Speaker Configuration]
"Speaker Configuration"=dword:00000006
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Hardware Profiles\0001\System\CurrentControlSet\Enum\PCI\VEN_13F6&DEV_0111&SUBSYS_3741584D&REV_10\4&13699180&0&4048\DirectSound\Speaker Configuration]
"Speaker Configuration"=dword:00000006
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Hardware Profiles\0001\System\CurrentControlSet\Enum\PCI\VEN_13F6&DEV_0111&SUBSYS_3741584D&REV_10\4&13699180&0&4048\DirectSound\Speaker Type]
"Speaker Type"=dword:0000000b
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Hardware Profiles\0001\System\CurrentControlSet\Enum\PCI\VEN_13F6&DEV_0111&SUBSYS_3741584D&REV_10\4&13699180&0&4048\DirectSound\Speaker Type]
"Speaker Type"=dword:0000000b
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Hardware Profiles\0001\System\CurrentControlSet\Enum\PCI\VEN_13F6&DEV_0111&SUBSYS_3741584D&REV_10\4&13699180&0&4048\DirectSound\Speaker Configuration]
"Speaker Configuration"=dword:00000006
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Hardware Profiles\Current\System\CurrentControlSet\Enum\PCI\VEN_13F6&DEV_0111&SUBSYS_3741584D&REV_10\4&13699180&0&4048\DirectSound\Speaker Type]
"Speaker Type"=dword:0000000b
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Hardware Profiles\Current\System\CurrentControlSet\Enum\PCI\VEN_13F6&DEV_0111&SUBSYS_3741584D&REV_10\4&13699180&0&4048\DirectSound\Speaker Configuration]
"Speaker Configuration"=dword:00000006
[HKEY_CURRENT_CONFIG\System\CurrentControlSet\Enum\PCI\VEN_13F6&DEV_0111&SUBSYS_3741584D&REV_10\4&13699180&0&4048\DirectSound\Speaker Type]
"Speaker Type"=dword:0000000b
[HKEY_CURRENT_CONFIG\System\CurrentControlSet\Enum\PCI\VEN_13F6&DEV_0111&SUBSYS_3741584D&REV_10\4&13699180&0&4048\DirectSound\Speaker Configuration]
"Speaker Configuration"=dword:00000006
and shove that in a .reg file and run that each time windows loads