Random CTD while operating HUD

I've been having random lock-ups while playing CoH that have been requiring a task-manager shut-down. I've primarily noticed that this has occurred while operating various parts of the in-game HUD, however, none are consistently causing a failure. I've gone stretches of anywhere from 1 minute to 45 minutes between crashes.

CoH Helper data:
---System information gathered by CoH Helper version 0.2.0.2---

DxDiag gathered at August 17, 2010 02:33 (-05:00)
Operating System: Windows 7 Professional 64-bit (6.1, Build 7600) (7600.win7_gdr.100618-1621)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: GA-MA790GP-UD4H
BIOS: Award Modular BIOS v6.00PG
Central Processor: AMD Phenom(tm) 9500 Quad-Core Processor (4 CPUs), ~2.2GHz
Memory: 8192MB
.Net Memory Report: 6418MB out of 8190MB available
Page File: 14320MB (2058MB currently in use)
C Drive: (Hitachi HDS722020ALA330 ATA Device) 1507999MB out of 1907625MB (79%) free
D Drive: (ST3500320AS ATA Device) 74727MB out of 476929MB (15%) free
E Drive: (TSSTcorp CDDVDW SH-S203B ATA Device) zero-size drive
Windows directory location: C:\Windows
DirectX: DirectX 11
DirectX Diag version: 6.01.7600.16385 (64-bit version)

Display Notes: No problems found.
Sound Notes: No problems found.

No problems found.
Input Notes: No problems found.

Monitor:
Monitor's Max Resolution: (blank)
Video Device Name: ATI Radeon HD 3800 Series
Manufacturer / Chip: ATI Technologies Inc. / ATI display adapter (0x9505)
Video Memory: 3315 MB
Driver Version: 8.753.0.0
Driver Date: 7/6/2010 8:53:20 PM
Driver Language: English

Sound Device Description: Speakers (Logitech USB Headset)
Driver File: USBAUDIO.sys
Driver Version: 6.01.7600.16385
Driver Date: 7/13/2009 7:06:32 PM

Sound Device Description: Digital Audio (S/PDIF) (High Definition Audio Device)
Driver File: HdAudio.sys
Driver Version: 6.01.7600.16385
Driver Date: 7/13/2009 7:07:00 PM


WMI Information
Motherboard Manufacturer: Gigabyte Technology Co., Ltd.
Motherboard Model: (empty)
Motherboard Product: GA-MA790GP-UD4H
Motherboard Version: x.x
BIOS Manufacturer: Award Software International, Inc.
BIOS Name: Award Modular BIOS v6.00PG
BIOS Version: GBT - 42302e31
BIOS Release: 20081231000000.000000+000


Registry Information for Current User
Resolution: 1920x1080
3D Resolution: 1920x1080 (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: Off
Anisotropic Filtering: None
Texture LOD Bias: Smooth
Water Effects: Medium quality
Bloom: 1.000 (turned on)
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: No
Shadow Mode: Stencil shadows
Shadow Map Shader: Unknown (0)
Environmental Reflections: Medium quality
Advanced Occlusion Settings: Yes
Ambient Occlusion: Off
Occlusion Strength: Slight
Blur: Bilateral
Ambient Resolution: Performance


Gamma Correction: 1.000
Geometry Buffers (VBOs) Enabled: Yes
Suppression of FX When Camera Close Enabled: Yes
Close Suppression Range: 3.000
Show Advertisements: Yes

Audio Mode: Performance
3D Audio: Yes
FX Sound Volume: 0.500
Music Sound Volume: 0.000

Show Advanced Graphics Options: Yes
Overall Graphics Quality: 0.500
Reverse Mouse Buttons: No
Save Login Username: Yes
Transfer Rate: 413369 bytes/second
Current Game Version: 1850.201007290124.10T2
Installation Directory: C:\Program Files (x86)\City of Heroes

Mod files in the Data directory
No modifications found

HiJackThis text:
MSIE: Internet Explorer v8.00 (8.00.7600.16385)
Boot mode: Normal

Running processes:
C:\Program Files (x86)\Steam\Steam.exe
C:\Program Files (x86)\Winamp\winampa.exe
C:\Program Files (x86)\iTunes\iTunesHelper.exe
C:\Program Files (x86)\AVG\AVG9\avgtray.exe
C:\Program Files (x86)\AVG\AVG9\Identity Protection\agent\bin\avgidsmonitor.exe
C:\Program Files (x86)\Winamp\winamp.exe
C:\Program Files (x86)\Mozilla Firefox\firefox.exe
C:\Users\Christopher\Desktop\DownLoads\HijackThis. exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = C:\Windows\SysWOW64\blank.htm
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
F2 - REG:system.ini: UserInit=userinit.exe
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files (x86)\AVG\AVG9\avgssie.dll
O4 - HKLM\..\Run: [WinampAgent] "C:\Program Files (x86)\Winamp\winampa.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files (x86)\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files (x86)\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [StartCCC] "C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe" MSRun
O4 - HKLM\..\Run: [ATICustomerCare] "C:\Program Files (x86)\ATI\ATICustomerCare\ATICustomerCare.exe"
O4 - HKLM\..\Run: [AVG9_TRAY] C:\PROGRA~2\AVG\AVG9\avgtray.exe
O4 - HKCU\..\Run: [Steam] "C:\Program Files (x86)\Steam\Steam.exe" -silent
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-19\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-20\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'NETWORK SERVICE')
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files (x86)\AVG\AVG9\avgpp.dll
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: AMD External Events Utility - Unknown owner - C:\Windows\system32\atiesrxx.exe (file missing)
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files (x86)\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: AVG E-mail Scanner (avg9emc) - AVG Technologies CZ, s.r.o. - C:\Program Files (x86)\AVG\AVG9\avgemc.exe
O23 - Service: AVG WatchDog (avg9wd) - AVG Technologies CZ, s.r.o. - C:\Program Files (x86)\AVG\AVG9\avgwdsvc.exe
O23 - Service: AVG Firewall (avgfws9) - AVG Technologies CZ, s.r.o. - C:\Program Files (x86)\AVG\AVG9\avgfws9.exe
O23 - Service: AVG9IDSAgent (AVGIDSAgent) - AVG Technologies CZ, s.r.o. - C:\Program Files (x86)\AVG\AVG9\Identity Protection\Agent\Bin\AVGIDSAgent.exe
O23 - Service: Bonjour Service - Apple Inc. - C:\Program Files (x86)\Bonjour\mDNSResponder.exe
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\Windows\System32\lsass.exe (file missing)
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\Windows\system32\fxssvc.exe (file missing)
O23 - Service: iPod Service - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\Windows\System32\msdtc.exe (file missing)
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: PnkBstrA - Unknown owner - C:\Windows\system32\PnkBstrA.exe
O23 - Service: @%systemroot%\system32\psbase.dll,-300 (ProtectedStorage) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%systemroot%\system32\Locator.exe,-2 (RpcLocator) - Unknown owner - C:\Windows\system32\locator.exe (file missing)
O23 - Service: @%SystemRoot%\system32\samsrv.dll,-1 (SamSs) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%SystemRoot%\system32\snmptrap.exe,-3 (SNMPTRAP) - Unknown owner - C:\Windows\System32\snmptrap.exe (file missing)
O23 - Service: @%systemroot%\system32\spoolsv.exe,-1 (Spooler) - Unknown owner - C:\Windows\System32\spoolsv.exe (file missing)
O23 - Service: @%SystemRoot%\system32\sppsvc.exe,-101 (sppsvc) - Unknown owner - C:\Windows\system32\sppsvc.exe (file missing)
O23 - Service: Steam Client Service - Valve Corporation - C:\Program Files (x86)\Common Files\Steam\SteamService.exe
O23 - Service: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\Windows\system32\UI0Detect.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vaultsvc.dll,-1003 (VaultSvc) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vds.exe,-100 (vds) - Unknown owner - C:\Windows\System32\vds.exe (file missing)
O23 - Service: @%systemroot%\system32\vssvc.exe,-102 (VSS) - Unknown owner - C:\Windows\system32\vssvc.exe (file missing)
O23 - Service: @%SystemRoot%\system32\Wat\WatUX.exe,-601 (WatAdminSvc) - Unknown owner - C:\Windows\system32\Wat\WatAdminSvc.exe (file missing)
O23 - Service: @%systemroot%\system32\wbengine.exe,-104 (wbengine) - Unknown owner - C:\Windows\system32\wbengine.exe (file missing)
O23 - Service: @%Systemroot%\system32\wbem\wmiapsrv.exe,-110 (wmiApSrv) - Unknown owner - C:\Windows\system32\wbem\WmiApSrv.exe (file missing)
O23 - Service: @%PROGRAMFILES%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - C:\Program Files (x86)\Windows Media Player\wmpnetwk.exe (file missing)

--
End of file - 6812 bytes

Please help.