Mangler hjælp med virus eller errors

Hej, min computer er HELT færdig.. Min skærm går i standby og fryser mange gange.. Og den er i det hele taget bare meget langsom.. Jeg har kopieret en log fra HijackThis. Håber en kan hjælpe mig.
Her er loggen, jeg kan ikk rigtig finde ud af det. :P

Logfile of HijackThis v1.99.1
Scan saved at 19:50:07, on 21-06-2005
Platform: Windows XP  (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)

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:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\MMTrayLSI.exe
C:\WINDOWS\System32\MMTray2k.exe
C:\WINDOWS\System32\MMTray.exe
C:\Programmer\Winamp\winampa.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Programmer\Alwil Software\Avast4\aswUpdSv.exe
C:\Programmer\Alwil Software\Avast4\ashServ.exe
C:\Programmer\Messenger\msmsgs.exe
C:\Programmer\MSN Messenger\msnmsgr.exe
C:\WINDOWS\system32\cisvc.exe
C:\Programmer\Fælles filer\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\wuauclt.exe
C:\WINDOWS\system32\cidaemon.exe
C:\Programmer\Alwil Software\Avast4\ashMaiSv.exe
C:\Programmer\Alwil Software\Avast4\ashWebSv.exe
C:\Programmer\Internet Explorer\iexplore.exe
C:\Documents and Settings\Thalamus\Skrivebord\hjt.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://signon.stofanet.dk/
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = https://www.blastmega.com/rules.php?version=5&install_date=1078952992&line=0&time=0&evals=0
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,AutoConfigURL = http://signon.stofanet.dk/proxy.pac
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Hyperlinks
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmer\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O3 - Toolbar: (no name) - {0E677229-E309-4341-81BD-3CC3018BF5B3} - (no file)
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [MMTrayLSI] C:\WINDOWS\System32\MMTrayLSI.exe
O4 - HKLM\..\Run: [MMTray2K] C:\WINDOWS\System32\MMTray2k.exe
O4 - HKLM\..\Run: [MMTray] C:\WINDOWS\System32\MMTray.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\WINDOWS\System32\qttask.exe" -atboottime
O4 - HKLM\..\Run: [WinampAgent] C:\Programmer\Winamp\winampa.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [Tweak UI] RUNDLL32.EXE TWEAKUI.CPL,TweakMeUp
O4 - HKCU\..\Run: [MSMSGS] "C:\Programmer\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [msnmsgr] "C:\Programmer\MSN Messenger\msnmsgr.exe" /background
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmer\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmer\Messenger\MSMSGS.EXE
O15 - Trusted Zone: http://ny.contentmatch.net (HKLM)
O15 - Trusted IP range: 213.159.117.202 (HKLM)
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=36467&clcid=0x409
O16 - DPF: {53B3ABEA-4445-44D9-A01E-088144CAABD9} (FileSharingCtrl Class) - http://appdirectory.messenger.msn.com/AppDirectory/P4Apps/FileSharing/da/filesharingctrl.cab
O16 - DPF: {70BA88C8-DAE8-4CE9-92BB-979C4A75F53B} (GSDACtl Class) - http://launch.gamespyarcade.com/software/launch/alaunch.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/msnmessengersetupdownloader.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://zone.msn.com/binFramework/v10/ZIntro.cab34246.cab
O16 - DPF: {E5D419D6-A846-4514-9FAD-97E826C84822} (HeartbeatCtl Class) - http://fdl.msn.com/zone/datafiles/heartbeat.cab
O20 - Winlogon Notify: MCPClient - C:\PROGRA~1\FLLESF~1\Stardock\mcpstub.dll (file missing)
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Programmer\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Programmer\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Programmer\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Programmer\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe