Lock Issue

OK, as of 2 days ago when playing, the game will randomly lock up taking the computer with it. It leaves the moniter froze and the sound skipping. This only happens in CoX, I can play any other games with anything running in the background (music). I've never had this problem before and I've played for quite a while. On a side note, it has only happend while i'm in the middle of a mission, which is great cause I usually end up dead becuase of it. I appoligze for the following spam, but I'm not sure the data anyone needs. Any advice would be greatly appreciated since I've already reupdated direct x, got new video drivers and have uninstalled and reinstalled the game.

---System information gathered by CoH Helper version 0.1.1.8---
DxDiag gathered at August 13, 2009 19:37 (-05:00)
Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.090206-1234)
System Manufacturer: Compaq Presario 061
System Model: RE473AA-ABA SR2020NX NA680
BIOS: Phoenix - AwardBIOS v6.00PG
Central Processor: AMD Athlon(tm) 64 Processor 3500+, MMX, 3DNow, ~2.2GHz
Memory: 1982MB
.Net Memory Report: 1418MB out of 1982MB available
Page File: 1954MB (547MB currently in use)
C Drive: (WDC WD1600JS-60NCB1) 60451MB out of 143846MB (42%) free
D Drive: (WDC WD1600JS-60NCB1) 569MB out of 8762MB (6%) free
E Drive: (LITE-ON DVDRW SHM-165H6S) zero-size drive
Windows directory location: C:\WINDOWS
DirectX: DirectX 9.0c (4.09.0000.0904)
DirectX Diag version: 5.03.2600.5512 (32-bit version)
Display Notes: No problems found.
Sound Notes: No problems found.
Input Notes: No problems found.
Monitor: Dell P1110
Monitor's Max Resolution: 1800,1440
Video Device Name: NVIDIA GeForce 9500 GT
Manufacturer / Chip: NVIDIA / GeForce 9500 GT
Video Memory: 1024.0 MB
Driver Version: 6.14.0011.9038
Driver Date: 7/14/2009 1:54:00 PM
Driver Language: English
Sound Device Description: Realtek HD Audio rear output
Driver File: RtkHDAud.sys
Driver Version: 5.10.0000.5268
Driver Date: 6/14/2006 1:04:12 PM

WMI Information
Motherboard Manufacturer: ASUSTek Computer INC.
Motherboard Model: (empty)
Motherboard Product: NAOS
Motherboard Version: 1.05
BIOS Manufacturer: Phoenix Technologies, LTD
BIOS Name: Phoenix - AwardBIOS v6.00PG
BIOS Version: HP-CPC - 42302e31
BIOS Release: 20060630000000.000000+000
Registry Information for Current User
Resolution: 1024x768
3D Resolution: 1024x768 (Not using renderscale)
Full Screen: Yes
Maximized: No
Screen Position: 0, 0
Refresh Rate: 60Hz
Vertical Sync Enabled: Yes
Physics Quality: Medium
Maximum Particles: 50000
Max Particle Fill? 10.000
Physics Card Enabled: No
Anti-aliasing: None
Anisotropic Filtering: 4x
Texture LOD Bias: Smooth
Water Effects: High Quality
Bloom: 1.000 (turned off)
Depth of Field Enabled: Yes
Desaturation Effects (Sepia) Enabled: Yes
Shader Detail: High
World Texture Level: Very High
Character Texture Level: Very High
World Detail Level (Vis_Scale): 1.000
Entity Detail Level: 1.000
Shadows Enabled: Yes
Gamma Correction: 1.000
Geometry Buffers (VBOs) Enabled: Yes
Suppression of Extra Player FX Enabled: No
Suppression of FX When Camera Close Enabled: No
Close Suppression Range: 3.000
Show Advertisements: Yes
Audio Mode: Performance
3D Audio: No
FX Sound Volume: 0.244
Music Sound Volume: 0.000
Show Advanced Graphics Options: No
Overall Graphics Quality: 0.600
Reverse Mouse Buttons: No
Save Login Username: Yes
Transfer Rate: 551539 bytes/second
Current Game Version: 19.20090716.3T
Installation Directory: C:\Program Files\City of Heroes
Mod files in the Data directory
No modifications found