problema con hd4850

[arcanisgk1]

Sound Devices
-------------
Description: Altavoces (Realtek High Definition Audio)
Default Sound Playback: Yes
Default Voice Playback: Yes
Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0885&SUBSYS_1458A002& REV_1001
Manufacturer ID: 1
Product ID: 100
Type: WDM
Driver Name: RTKVHD64.sys
Driver Version: 6.00.0001.5864 (English)
Driver Attributes: Final Retail
WHQL Logo'd: n/a
Date and Size: 6/2/2009 18:15:14, 1766944 bytes
Other Files:
Driver Provider: Realtek Semiconductor Corp.
HW Accel Level: Basic
Cap Flags: 0xF1F
Min/Max Sample Rate: 100, 200000
Static/Strm HW Mix Bufs: 1, 0
Static/Strm HW 3D Bufs: 0, 0
HW Memory: 0
Voice Management: No
EAX(tm) 2.0 Listen/Src: No, No
I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No

Description: Realtek Digital Output (Realtek High Definition Audio)
Default Sound Playback: No
Default Voice Playback: No
Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0885&SUBSYS_1458A002& REV_1001
Manufacturer ID: 1
Product ID: 100
Type: WDM
Driver Name: RTKVHD64.sys
Driver Version: 6.00.0001.5864 (English)
Driver Attributes: Final Retail
WHQL Logo'd: n/a
Date and Size: 6/2/2009 18:15:14, 1766944 bytes
Other Files:
Driver Provider: Realtek Semiconductor Corp.
HW Accel Level: Basic
Cap Flags: 0xF1F
Min/Max Sample Rate: 100, 200000
Static/Strm HW Mix Bufs: 1, 0
Static/Strm HW 3D Bufs: 0, 0
HW Memory: 0
Voice Management: No
EAX(tm) 2.0 Listen/Src: No, No
I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No

Sound Capture Devices
---------------------
Description: Mic in at rear panel (Pink) (Realtek High Definition Audio)
Default Sound Capture: Yes
Default Voice Capture: Yes
Driver Name: RTKVHD64.sys
Driver Version: 6.00.0001.5864 (English)
Driver Attributes: Final Retail
Date and Size: 6/2/2009 18:15:14, 1766944 bytes
Cap Flags: 0x1
Format Flags: 0xFFFFF

Description: Realtek Digital Input (Realtek High Definition Audio)
Default Sound Capture: No
Default Voice Capture: No
Driver Name: RTKVHD64.sys
Driver Version: 6.00.0001.5864 (English)
Driver Attributes: Final Retail
Date and Size: 6/2/2009 18:15:14, 1766944 bytes
Cap Flags: 0x1
Format Flags: 0xFFFFF