Ive read several thread without being able to find a fix to my issue

i play DDO since 2006 and started to get reboot since ddo went free
i can log in game and play for around 1 to 5 minute before computer reboot
it only happen with ddo since i can run other game for hours without any problem
isnt my memory or my graphic card
isnt a overheatin issue as well

i think it can be my realtek driver but if i install the latest driver for it my computer dont see my audio card anymore, wich mean no sound at all.

plz help an hardcore player to get back on his drug

there is the dxdiag i got

Code:
------------------
System Information
------------------
Time of this report: 4/21/2010, 23:49:02
       Machine name: SEBASTIE-101C63
   Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.100216-1514)
           Language: French (Regional Setting: French)
System Manufacturer: To Be Filled By O.E.M.
       System Model: To Be Filled By O.E.M.
               BIOS: BIOS Date: 09/27/04 21:48:26 Ver: 08.00.10
          Processor: Intel(R) Pentium(R) 4 CPU 3.20GHz (2 CPUs)
             Memory: 1024MB RAM
          Page File: 226MB used, 2235MB available
        Windows Dir: D:\WINDOWS
    DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
     DxDiag Version: 5.03.2600.5512 32bit Unicode

------------
DxDiag Notes
------------
  DirectX Files Tab: No problems found.
      Display Tab 1: No problems found.
        Sound Tab 1: No problems found.
          Music Tab: No problems found.
          Input Tab: No problems found.
        Network Tab: No problems found.

--------------------
DirectX Debug Levels
--------------------
Direct3D:    0/4 (n/a)
DirectDraw:  0/4 (retail)
DirectInput: 0/5 (n/a)
DirectMusic: 0/5 (n/a)
DirectPlay:  0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow:  0/6 (retail)

---------------
Display Devices
---------------
        Card name: NVIDIA GeForce 6200  
     Manufacturer: NVIDIA
        Chip type: GeForce 6200
         DAC type: Integrated RAMDAC
       Device Key: Enum\PCI\VEN_10DE&DEV_0221&SUBSYS_167919F1&REV_A1
   Display Memory: 256.0 MB
     Current Mode: 1680 x 1050 (32 bit) (60Hz)
          Monitor: Écran Plug-and-Play
  Monitor Max Res: 1600,1200
      Driver Name: nv4_disp.dll
   Driver Version: 6.14.0011.9745 (English)
      DDI Version: 9 (or higher)
Driver Attributes: Final Retail
 Driver Date/Size: 4/3/2010 16:55:31, 6432128 bytes
      WHQL Logo'd: Yes
  WHQL Date Stamp: n/a
              VDD: n/a
         Mini VDD: nv4_mini.sys
    Mini VDD Date: 4/3/2010 16:55:31, 10232128 bytes
Device Identifier: {D7B71E3E-4161-11CF-505C-723600C2CB35}
        Vendor ID: 0x10DE
        Device ID: 0x0221
        SubSys ID: 0x167919F1
      Revision ID: 0x00A1
      Revision ID: 0x00A1
      Video Accel: ModeMPEG2_C ModeMPEG2_D ModeWMV9_B ModeWMV9_A 
 Deinterlace Caps: {6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive 
                   {335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch 
                   {6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(UYVY,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive 
                   {335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(UYVY,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch 
                   {6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(YV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive 
                   {335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(YV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch 
                   {6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive 
                   {335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch 
         Registry: OK
     DDraw Status: Enabled
       D3D Status: Enabled
       AGP Status: Enabled
DDraw Test Result: Not run
 D3D7 Test Result: Not run
 D3D8 Test Result: Not run
 D3D9 Test Result: Not run

-------------
Sound Devices
-------------
            Description: Realtek HD Audio rear output
 Default Sound Playback: Yes
 Default Voice Playback: Yes
            Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0880&SUBSYS_08800000&REV_0905
        Manufacturer ID: 1
             Product ID: 100
                   Type: WDM
            Driver Name: RtkHDAud.sys
         Driver Version: 5.10.0000.5027 (English)
      Driver Attributes: Final Retail
            WHQL Logo'd: Yes
          Date and Size: 7/6/2004 02:59:44, 2185408 bytes
            Other Files: 
        Driver Provider: Realtek Semiconductor Corp.
         HW Accel Level: Full
              Cap Flags: 0xF5F
    Min/Max Sample Rate: 100, 192000
Static/Strm HW Mix Bufs: 33, 32
 Static/Strm HW 3D Bufs: 33, 32
              HW Memory: 0
       Voice Management: No
 EAX(tm) 2.0 Listen/Src: Yes, Yes
   I3DL2(tm) Listen/Src: Yes, Yes
Sensaura(tm) ZoomFX(tm): No
               Registry: OK
      Sound Test Result: Not run

---------------------
Sound Capture Devices
---------------------
            Description: Realtek HD Audio rear input
  Default Sound Capture: Yes
  Default Voice Capture: Yes
            Driver Name: RtkHDAud.sys
         Driver Version: 5.10.0000.5027 (English)
      Driver Attributes: Final Retail
          Date and Size: 7/6/2004 02:59:44, 2185408 bytes
              Cap Flags: 0x41
           Format Flags: 0xFFF

-----------
DirectMusic
-----------
        DLS Path: D:\WINDOWS\SYSTEM32\drivers\GM.DLS
     DLS Version: 1.00.0016.0002
    Acceleration: n/a
           Ports: Microsoft Synthesizer, Software (Not Kernel Mode), Output, DLS, Internal, Default Port
                  Mappeur MIDI Microsoft [Émulé], Hardware (Not Kernel Mode), Output, No DLS, Internal
                  SynthÚ. SW table de sons GS Mic [Émulé], Hardware (Not Kernel Mode), Output, No DLS, Internal
        Registry: OK
     Test Result: Not run

-------------------
DirectInput Devices
-------------------
      Device Name: Souris
         Attached: 1
    Controller ID: n/a
Vendor/Product ID: n/a
        FF Driver: n/a

      Device Name: Clavier
         Attached: 1
    Controller ID: n/a
Vendor/Product ID: n/a
        FF Driver: n/a

      Device Name: Logitech Gaming Keyboard
         Attached: 1
    Controller ID: 0x0
Vendor/Product ID: 0x046D, 0xC221
        FF Driver: n/a

      Device Name: Logitech Gaming Keyboard
         Attached: 1
    Controller ID: 0x0
Vendor/Product ID: 0x046D, 0xC221
        FF Driver: n/a

      Device Name: G15 Keyboard
         Attached: 1
    Controller ID: 0x0
Vendor/Product ID: 0x046D, 0xC222
        FF Driver: n/a

      Device Name: USB Receiver
         Attached: 1
    Controller ID: 0x0
Vendor/Product ID: 0x046D, 0xC51B
        FF Driver: n/a

Poll w/ Interrupt: No
         Registry: OK