Hardlocking while playing WoW

Whenver i play World of Warcraft my computer hard locks after about 5 minutes. I play much more graphic demanding games like Half-Life 2 and Lost Cost, and others such as those. And it doesnt happen for those games. It keeps getting worse now i am getting blue screens and now when i boot up it says video mode not supported for about 5 seconds then it will start up normally? im really confused and have no idea wahts wrong

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System Information
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Time of this report: 6/18/2006, 02:17:16
Machine name: HOME-2EDFE45C33
Operating System: Windows XP Home Edition (5.1, Build 2600) Service Pack 2 (2600.xpsp_sp2_rtm.040803-2158)
Language: English (Regional Setting: English)
System Manufacturer: NVIDIA
System Model: snc302eeh
BIOS: Phoenix - AwardBIOS v6.00PG
Processor: AMD Athlon(tm) 64 Processor 3400+, MMX, 3DNow, ~2.4GHz
Memory: 1024MB RAM
Page File: 236MB used, 2224MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
DxDiag Version: 5.03.2600.2180 32bit Unicode

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Display Devices
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Card name: NVIDIA GeForce 6600 GT
Manufacturer: NVIDIA
Chip type: GeForce 6600 GT
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_00F1&SUBSYS_00000000&REV_A2
Display Memory: 128.0 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: 6.14.0010.8421 (English)
DDI Version: 9 (or higher)
Driver Attributes: Final Retail
Driver Date/Size: 3/9/2006 15:29:00, 3968512 bytes
WHQL Logo'd: Yes
WHQL Date Stamp: n/a
VDD: n/a
Mini VDD: nv4_mini.sys
Mini VDD Date: 3/9/2006 15:29:00, 3650368 bytes
Device Identifier: {D7B71E3E-43B1-11CF-5543-0A2003C2CB35}
Vendor ID: 0x10DE
Device ID: 0x00F1
SubSys ID: 0x00000000
Revision ID: 0x00A2
Revision ID: 0x00A2
Video Accel: ModeMPEG2_A ModeMPEG2_B ModeMPEG2_C ModeMPEG2_D ModeWMV9_B ModeWMV9_A
Deinterlace Caps: {212DC724-3235-44A4-BD29-E1652BBCC71C}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,1) 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
{212DC724-3235-44A4-BD29-E1652BBCC71C}: Format(In/Out)=(UYVY,UYVY) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(UYVY,UYVY) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
{212DC724-3235-44A4-BD29-E1652BBCC71C}: Format(In/Out)=(YV12,0x32315659) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(YV12,0x32315659) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
{212DC724-3235-44A4-BD29-E1652BBCC71C}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,1) 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

If you need any more information just ask

 

I'm stumped, shooting into the dark here but try newer nvidia display drivers? and WoW can also be pretty graphics intensive (more so then CS:S or HL2 depending ont he settings)

 

You might need to download and install the 1.10 patch, After checking google i found it at this site http://www.strategyinformer.com/pc/patches/worldofwarcraft/patch.html.

 

Also disable all addon's if you have them, EX: Cosmos, Gatherer ect, you can do this by removing them from the addon's folder.

 

try turning down your card

 

There's now a 1.11 patch.

 

The sacastic answer is to play a better game, like Freecell or Pong.

What kind of connection have you got? Dial-up? Broadband? Or are you connecting through a wireless or lan? Have you got firewalls and anti-viruses running that could be catching outgoing information and locking the game?