Thread: Two massive errors.

Short and simple...
1. My game crashes for no reason.
A)Crashes and goes straight to my desktop
B)Crashes and freezes screen till I ctrl+alt+delete
C)Crashes with an actual error from L4D2
2. All the models go invisible...(e.g. teammates, hordes, special zombies, vehicles, parts of buildings, debris, etc...) All I see is shadows of zombies and players, the floor, and some walls scattered about.

There's no specific time of play, or level.
Please help...

Code:

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System Information
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Time of this report: 12/2/2009, 21:39:59
       Machine name: -MANSLAYER-
   Operating System: Windows XP Home Edition (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.090804-1435)
           Language: English (Regional Setting: English)
System Manufacturer: MICRO-STAR INTERNATIONAL CO.,LTD
       System Model: MS-7388
               BIOS: Default System BIOS
          Processor: AMD Phenom(tm) 9500 Quad-Core Processor,  MMX,  3DNow (4 CPUs), ~2.2GHz
             Memory: 3328MB RAM
          Page File: 830MB used, 4381MB available
        Windows Dir: C:\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: The file P17xfi.sys is not digitally signed, which means that it has not been tested by Microsoft's Windows Hardware Quality Labs (WHQL).  You may be able to get a WHQL logo'd driver from the hardware manufacturer.
        Sound Tab 2: 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 9600 GT
     Manufacturer: NVIDIA
        Chip type: GeForce 9600 GT
         DAC type: Integrated RAMDAC
       Device Key: Enum\PCI\VEN_10DE&DEV_0622&SUBSYS_00000000&REV_A1
   Display Memory: 2048.0 MB
     Current Mode: 1280 x 1024 (32 bit) (60Hz)
          Monitor: Plug and Play Monitor
  Monitor Max Res: 1600,1200
      Driver Name: nv4_disp.dll
   Driver Version: 6.14.0011.8242 (English)
      DDI Version: 9 (or higher)
Driver Attributes: Final Retail
 Driver Date/Size: 3/8/2009 02:37:00, 6185344 bytes
      WHQL Logo'd: Yes
  WHQL Date Stamp: n/a
              VDD: n/a
         Mini VDD: nv4_mini.sys
    Mini VDD Date: 3/8/2009 02:37:00, 6288672 bytes
Device Identifier: {D7B71E3E-4562-11CF-8243-0B2000C2CB35}
        Vendor ID: 0x10DE
        Device ID: 0x0622
        SubSys ID: 0x00000000
      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: Rocketfish 7.1
 Default Sound Playback: Yes
 Default Voice Playback: No
            Hardware ID: PCI\VEN_1102&DEV_0007&SUBSYS_10141102&REV_00
        Manufacturer ID: 1
             Product ID: 100
                   Type: WDM
            Driver Name: P17xfi.sys
         Driver Version: 5.12.0001.0625 (English)
      Driver Attributes: Final Retail
            WHQL Logo'd: No
          Date and Size: 11/28/2008 00:02:53, 1180160 bytes
            Other Files: 
        Driver Provider: Rocketfish
         HW Accel Level: Full
              Cap Flags: 0xF5F
    Min/Max Sample Rate: 100, 192000
Static/Strm HW Mix Bufs: 65, 63
 Static/Strm HW 3D Bufs: 65, 63
              HW Memory: 0
       Voice Management: Yes
 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

            Description: Realtek HD Audio output
 Default Sound Playback: No
 Default Voice Playback: Yes
            Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0888&SUBSYS_14627388&REV_1000
        Manufacturer ID: 1
             Product ID: 100
                   Type: WDM
            Driver Name: RtkHDAud.sys
         Driver Version: 5.10.0000.5730 (English)
      Driver Attributes: Final Retail
            WHQL Logo'd: Yes
          Date and Size: 10/31/2008 11:38:08, 4942336 bytes
            Other Files: 
        Driver Provider: Realtek Semiconductor Corp.
         HW Accel Level: Full
              Cap Flags: 0xF5F
    Min/Max Sample Rate: 8000, 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