Portal : Bug son et CPU 100 %

Bonjour,
J’ai voulu relancer Portal pour me faire qq speed run et quand j’arrive au menu, le son ne fait que de sauter, avec un framerate à 0.0001
En haut a droite, j ai un message de problème de connection.
Cependant tous les autres jeux de l orange box sont OK.
J ai essayer de tt effacer, et de reinstaller… meme résultat. (depart du DL a 70% …?)

Merci d avance !

DXDIAG


System Information

Time of this report: 3/3/2008, 19:49:34
Machine name: Nada
Operating System: Windows XP Professional x64 Edition (5.2, Build 3790) Service Pack 2 (3790.srv03_sp2_gdr.070321-2337)
Language: French (Regional Setting: French)
System Manufacturer: NVIDIA
System Model: AWRDACPI
BIOS: Default System BIOS
Processor: AMD Athlon™ 64 X2 Dual Core Processor 4400+ (2 CPUs), ~2.2GHz
Memory: 3070MB RAM
Page File: 1330MB used, 4553MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
DxDiag Version: 5.03.3790.3959 64bit 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 8800 GTS 512
 Manufacturer: NVIDIA
    Chip type: GeForce 8800 GTS 512
     DAC type: Integrated RAMDAC
   Device Key: Enum\PCI\VEN_10DE&DEV_0600&SUBSYS_23321682&REV_A2

Display Memory: 512.0 MB
Current Mode: 1680 x 1050 (32 bit) (60Hz)
Monitor: LG L226WA(Digital)
Monitor Max Res: 1680,1050
Driver Name: nv4_disp.dll
Driver Version: 6.14.0011.6921 (English)
DDI Version: 9 (or higher)
Driver Attributes: Final Retail
Driver Date/Size: 12/5/2007 01:41:00, 8447104 bytes
WHQL Logo’d: Yes
WHQL Date Stamp: n/a
VDD: n/a
Mini VDD: nv4_mini.sys
Mini VDD Date: 12/5/2007 01:41:00, 9525888 bytes
Device Identifier: {D7B71E3E-4540-11CF-3B6E-390303C2CB35}
Vendor ID: 0x10DE
Device ID: 0x0600
SubSys ID: 0x23321682
Revision ID: 0x00A2
Revision ID: 0x00A2

Sinon il y a t il une commande pour mettre tout les options par default pour le moteur Source?
Edité le 03/03/2008 à 21:48