écran bleu et hijackthis

Bonjour,
J'ai un gros problème d'écran bleu, assez récurent ! on m'a conseillé d'essayer "hijackthis" et de poster sur le forum le rapport ; alors voilà :
Logfile of HijackThis v1.99.1
Scan saved at 12:25:47, on 21/11/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\ATKKBService.exe
C:\Program Files\Pack Securite\Common\FSMA32.EXE
C:\Program Files\Pack Securite\Common\FSMB32.EXE
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\Pack Securite\Common\FCH32.EXE
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Pack Securite\Common\FAMEH32.EXE
C:\Program Files\Pack Securite\FSPC\fspc.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\Pack Securite\FSAUA\program\fsaua.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Pack Securite\FSAUA\program\fsus.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\WINDOWS\ALCWZRD.EXE
C:\WINDOWS\ALCMTR.EXE
C:\WINDOWS\system32\RUNDLL32.EXE
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Pack Securite\Common\FSM32.EXE
C:\Program Files\Winamp\winampa.exe
C:\Program Files\Hewlett-Packard\HP Share-to-Web\hpgs2wnd.exe
C:\Program Files\Pinnacle\Shared Files\InstantCDDVD\PCLETray.exe
C:\Program Files\Hewlett-Packard\HP Share-to-Web\hpgs2wnf.exe
C:\Program Files\Pinnacle\InstantCDDVD\InstantWrite\iwctrl.exe
C:\Program Files\Pack Securite\FSGUI\fsguidll.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpobnz08.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hposol08.exe
C:\Program Files\OpenOffice.org 2.0\program\soffice.exe
C:\Program Files\OpenOffice.org 2.0\program\soffice.BIN
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpoevm08.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\Bin\hpoSTS08.exe
C:\Program Files\QuickZip4\QuickZip.exe
C:\Program Files\QuickZip4\QuickZip.exe
C:\WINDOWS\Explorer.EXE
C:\DOWNLOAD\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = https://actus.sfr.fr
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = https://actus.sfr.fr
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://home.neuf.fr/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = https://actus.sfr.fr
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = https://actus.sfr.fr
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://www.google.fr/keyword/%s
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: Winamp Toolbar BHO - {25CEE8EC-5730-41bc-8B58-22DDC8AB8C20} - C:\Program Files\Winamp Toolbar\winamptb.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O3 - Toolbar: Winamp Toolbar - {EBF2BA02-9094-4c5a-858B-BB198F3D8DE2} - C:\Program Files\Winamp Toolbar\winamptb.dll
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [Raccourci vers la page des propriétés de High Definition Audio] HDAudPropShortcut.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [AlcWzrd] ALCWZRD.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [AnyDVD] D:\gravure\slysoft\k_anydvd\AnyDVD.exe
O4 - HKLM\..\Run: [PinnacleDriverCheck] C:\WINDOWS\system32\PSDrvCheck.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [F-Secure Manager] "C:\Program Files\Pack Securite\Common\FSM32.EXE" /splash
O4 - HKLM\..\Run: [F-Secure TNB] "C:\Program Files\Pack Securite\FSGUI\TNBUtil.exe" /CHECKALL /WAITFORSW
O4 - HKLM\..\Run: [WinampAgent] "C:\Program Files\Winamp\winampa.exe"
O4 - HKLM\..\Run: [Share-to-Web Namespace Daemon] C:\Program Files\Hewlett-Packard\HP Share-to-Web\hpgs2wnd.exe
O4 - HKCU\..\Run: [InstantTray] C:\Program Files\Pinnacle\Shared Files\InstantCDDVD\PCLETray.exe
O4 - HKCU\..\Run: [IW_Drop_Icon] C:\Program Files\Pinnacle\InstantCDDVD\InstantWrite\iwctrl.exe /DropDisc
O4 - Startup: OpenOffice.org 2.0.lnk = C:\Program Files\OpenOffice.org 2.0\program\quickstart.exe
O4 - Global Startup: hp psc 2000 Series.lnk = C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpobnz08.exe
O4 - Global Startup: officejet 6100.lnk = ?
O8 - Extra context menu item: &Winamp Toolbar Search - C:\Documents and Settings\All Users\Application Data\Winamp Toolbar\ieToolbar\resources\en-US\local\search.html
O9 - Extra button: Parental... - {200DB664-75B5-47c0-8B45-A44ACCF73C00} - C:\Program Files\Pack Securite\FSPC\fspcmsie.dll
O9 - Extra button: (no name) - {200DB664-75B5-47c0-8B45-A44ACCF73F01} - C:\Program Files\Pack Securite\FSPC\fspcmsie.dll
O9 - Extra 'Tools' menuitem: Parental... - {200DB664-75B5-47c0-8B45-A44ACCF73F01} - C:\Program Files\Pack Securite\FSPC\fspcmsie.dll
O10 - Unknown file in Winsock LSP: c:\program files\pack securite\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\pack securite\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\pack securite\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\pack securite\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\pack securite\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\pack securite\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\pack securite\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\pack securite\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\pack securite\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\pack securite\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\pack securite\fsps\program\fslsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\pack securite\fsps\program\fslsp.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: ATK Keyboard Service (ATKKeyboardService) - ASUSTeK COMPUTER INC. - C:\WINDOWS\ATKKBService.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: F-Secure Automatic Update Agent (FSAUA) - F-Secure Corporation - C:\Program Files\Pack Securite\FSAUA\program\fsaua.exe
O23 - Service: F-Secure Management Agent (FSMA) - F-Secure Corporation - C:\Program Files\Pack Securite\Common\FSMA32.EXE
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe

Je vous remercie d'avance si vous pouvez m'aider!