[Closed] PC is slow and freezes

Could someone please have a look at this hijackthis log and tell me if I've got a problem? My PC is very slow and it keeps freezing.
Thanks

Logfile of HijackThis v1.99.1
Scan saved at 21:31:46, on 02/02/2008
Platform: Windows ME (Win9x 4.90.3000)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\WINDOWS\SYSTEM\NMSSVC.EXE
C:\WINDOWS\SYSTEM\STIMON.EXE
C:\WINDOWS\SYSTEM\KB891711\KB891711.EXE
C:\WINDOWS\SYSTEM\RESTORE\STMGR.EXE
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\TASKMON.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\WINDOWS\SYSTEM\IGFXTRAY.EXE
C:\WINDOWS\SYSTEM\HKCMD.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
C:\PROGRAM FILES\MUSICMATCH\MUSICMATCH JUKEBOX\MM_TRAY.EXE
C:\WINDOWS\SYSTEM\QTTASK.EXE
C:\WINDOWS\SYSTEM\WMIEXE.EXE
C:\PROGRAM FILES\GRISOFT\AVG FREE\AVGCC.EXE
C:\PROGRAM FILES\GRISOFT\AVG FREE\AVGAMSVR.EXE
C:\PROGRAM FILES\GRISOFT\AVG FREE\AVGEMC.EXE
C:\WINDOWS\LOADQM.EXE
C:\PROGRAM FILES\MSN APPS\UPDATER\01.03.0000.1005\EN-US\MSNAPPAU.EXE
C:\PROGRAM FILES\MSN MESSENGER\MSNMSGR.EXE
C:\PROGRAM FILES\OLYMPUS\OLYMPUS MASTER\MONITOR.EXE
C:\PROGRAM FILES\SEC\NATURAL COLOR\NATURALCOLORLOAD.EXE
C:\PROGRAM FILES\INTERNET EXPLORER\IEXPLORE.EXE
C:\PROGRAM FILES\HIJACK THIS\HIJACKTHIS.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://g.msn.com/0SEENUS/SAOS01
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://portal.plus.net/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = PlusNet Internet Explorer
O2 - BHO: Yahoo! Companion BHO - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\PROGRAM FILES\YAHOO!\COMPANION\INSTALLS\CPN1\YCOMP5_5_7_0.DLL
O2 - BHO: MSNToolBandBHO - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\PROGRAM FILES\MSN APPS\MSN TOOLBAR\01.02.5000.1021\EN-US\MSNTB.DLL
O2 - BHO: ST - {9394EDE7-C8B5-483E-8773-474BF36AF6E4} - C:\PROGRAM FILES\MSN APPS\ST\01.03.0000.1005\EN-XU\STMAIN.DLL
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\PROGRAM FILES\ADOBE\ACROBAT 6.0\READER\ACTIVEX\ACROIEHELPER.DLL
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
O3 - Toolbar: Yahoo! Companion - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\PROGRAM FILES\YAHOO!\COMPANION\INSTALLS\CPN1\YCOMP5_5_7_0.DLL
O3 - Toolbar: MSN - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\PROGRAM FILES\MSN APPS\MSN TOOLBAR\01.02.5000.1021\EN-US\MSNTB.DLL
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [ScanRegistry] C:\WINDOWS\scanregw.exe /autorun
O4 - HKLM\..\Run: [TaskMonitor] C:\WINDOWS\taskmon.exe
O4 - HKLM\..\Run: [PCHealth] C:\WINDOWS\PCHealth\Support\PCHSchd.exe -s
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\SYSTEM\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\SYSTEM\hkcmd.exe
O4 - HKLM\..\Run: [MMTray] "C:\Program Files\Musicmatch\Musicmatch Jukebox\mm_tray.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\WINDOWS\SYSTEM\QTTASK.EXE" -atboottime
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\GRISOFT\AVGFRE~1\AVGCC.EXE /STARTUP
O4 - HKLM\..\Run: [AVG7_AMSVR] C:\PROGRA~1\GRISOFT\AVGFRE~1\AVGAMSVR.EXE
O4 - HKLM\..\Run: [AVG7_EMC] C:\PROGRA~1\GRISOFT\AVGFRE~1\AVGEMC.EXE
O4 - HKLM\..\Run: [LoadQM] loadqm.exe
O4 - HKLM\..\Run: [msnappau] "C:\Program Files\MSN Apps\Updater\01.03.0000.1005\en-us\msnappau.exe"
O4 - HKLM\..\Run: [OM_Monitor] C:\Program Files\OLYMPUS\OLYMPUS Master\FirstStart.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [SchedulingAgent] mstask.exe
O4 - HKLM\..\RunServices: [*StateMgr] C:\WINDOWS\System\Restore\StateMgr.exe
O4 - HKLM\..\RunServices: [NMSSvc] C:\WINDOWS\SYSTEM\NMSSVC.EXE
O4 - HKLM\..\RunServices: [StillImageMonitor] C:\WINDOWS\SYSTEM\STIMON.EXE
O4 - HKLM\..\RunServices: [KB891711] C:\WINDOWS\SYSTEM\KB891711\KB891711.EXE
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [OM_Monitor] C:\PROGRAM FILES\OLYMPUS\OLYMPUS MASTER\MONITOR.EXE
O4 - Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O4 - Startup: NaturalColorLoad.lnk = C:\Program Files\SEC\Natural Color\NaturalColorLoad.exe
O8 - Extra context menu item: Download using LeechGet Wizard - file://C:\Program Files\LeechGet 2004\\Wizard.html
O8 - Extra context menu item: Download using LeechGet - file://C:\Program Files\LeechGet 2004\\AddUrl.html
O8 - Extra context menu item: Parse with LeechGet - file://C:\Program Files\LeechGet 2004\\Parser.html
O8 - Extra context menu item: &Google Search - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmsearch.html
O8 - Extra context menu item: &Translate English Word - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmwordtrans.html
O8 - Extra context menu item: Cached Snapshot of Page - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmcache.html
O8 - Extra context menu item: Similar Pages - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmsimilar.html
O8 - Extra context menu item: Backward Links - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmbacklinks.html
O8 - Extra context menu item: Translate Page into English - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmtrans.html
O12 - Plugin for .UVR: C:\PROGRA~1\INTERN~1\Plugins\NPUPano.dll
O14 - IERESET.INF: START_PAGE_URL=http://portal.plus.net/
O16 - DPF: {AE9DCB17-F804-11D2-A44A-0020182C1446} (IntraLaunch.MainControl) - file://D:\system\IntraLaunch.CAB
O16 - DPF: {11111111-1111-1111-1111-511111193457} - file://c:\x.cab
O16 - DPF: {11111111-1111-1111-1111-511111193458} - file://c:\x.cab
O16 - DPF: {56336BCB-3D8A-11D6-A00B-0050DA18DE71} - http://software-dl.real.com/159feaeae96982…ip/RdxIE601.cab
O16 - DPF: {288C5F13-7E52-4ADA-A32E-F5BF9D125F99} (CR64Loader Object) - http://www.miniclip.com/puzzlepirates/miniclipGameLoader.dll
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/msnmesse…pdownloader.cab
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {0E5F0222-96B9-11D3-8997-00104BD12D94} (PCPitstop Utility) - http://pcpitstop.com/pcpitstop/PCPitStop.CAB