Windows 2000 - 100% CPU Usage

Hi All

I am just wondering if anyone can help me. My CPU often goes to 100% CPU usage especially when I open a new page. I unticked to smooth scrolling, ran adaware and a number of spyware and trojan programs and fixed any evident problems but it still occurs. Winlogon EXE also takes ages to load up. This is my hijack file:

Logfile of HijackThis v1.97.7
Scan saved at 10:51:25 PM, on 3/10/2004
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\System32\svchost.exe
C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINNT\system32\LEXBCES.EXE
C:\WINNT\system32\spoolsv.exe
C:\WINNT\system32\LEXPPS.EXE
C:\Program Files\Common Files\Symantec Shared\ccProxy.exe
C:\Program Files\Norton Internet Security\Norton AntiVirus\navapsvc.exe
C:\WINNT\system32\regsvc.exe
C:\Program Files\Norton Internet Security\Norton AntiVirus\SAVScan.exe
C:\WINNT\system32\MSTask.exe
C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
C:\WINNT\system32\stisvc.exe
C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\svchost.exe
C:\PROGRA~1\Lexmark\PHOTOC~1\LXBLKsk.exe
C:\Program Files\Java\j2re1.4.2_05\bin\jusched.exe
C:\WINNT\System32\svchost.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\WINNT\system32\taskmgr.exe
C:\WINNT\explorer.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
D:\Tristian's new games\downloads\HijackThis.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = http://minisearch.startnow.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.microsoft.com/isapi/redir.dll?prd=ie&pver=6&ar=msnhome
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://minisearch.startnow.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://minisearch.startnow.com
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,AutoConfigURL = 210.80.54.34
O1 - Hosts: 200.199.201.83 www.engesoft.brturbo.com
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {23977793-F6A9-4779-8A37-FC85D8A116B0} - C:\WINNT\system32\mmfijfa.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: Web assistant - {9ECB9560-04F9-4bbc-943D-298DDF1699E1} - C:\Program Files\Common Files\Symantec Shared\AdBlocking\NISShExt.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: Web assistant - {0B53EAC3-8D69-4b9e-9B19-A37C9A5676A7} - C:\Program Files\Common Files\Symantec Shared\AdBlocking\NISShExt.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton Internet Security\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: (no name) - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - (no file)
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\system32\msdxm.ocx
O3 - Toolbar: (no name) - {62999427-33FC-4baf-9C9C-BCE6BD127F08} - (no file)
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [URLLSTCK.exe] C:\Program Files\Norton Internet Security\UrlLstCk.exe
O4 - HKLM\..\Run: [LXBLKsk] C:\PROGRA~1\Lexmark\PHOTOC~1\LXBLKsk.exe
O4 - HKLM\..\Run: [SSC_UserPrompt] C:\Program Files\Common Files\Symantec Shared\Security Center\UsrPrmpt.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_05\bin\jusched.exe
O4 - HKCU\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe
O4 - HKCU\..\Run: [SpySweeper] "C:\Program Files\Webroot\Spy Sweeper\SpySweeper.exe" /0
O8 - Extra context menu item: &Download with &DAP - C:\PROGRA~1\DAP\dapextie.htm
O8 - Extra context menu item: Download &all with DAP - C:\PROGRA~1\DAP\dapextie2.htm
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra 'Tools' menuitem: Sun Java Console (HKLM)
O9 - Extra button: Research (HKLM)
O9 - Extra button: ICQ 4.1 (HKLM)
O9 - Extra 'Tools' menuitem: ICQ Lite (HKLM)
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: ConferenceRoom Java Client - http://webmaster.webmaster.com:8000/java/cr.cab
O16 - DPF: {00B71CFB-6864-4346-A978-C0A14556272C} (Checkers Class) - http://messenger.zone.msn.com/binary/msgrchkr.cab28578.cab
O16 - DPF: {2917297F-F02B-4B9D-81DF-494B6333150B} (Minesweeper Flags Class) - http://messenger.zone.msn.com/binary/MineSweeper.cab28578.cab
O16 - DPF: {31B7EB4E-8B4B-11D1-A789-00A0CC6651A8} (Cult3D ActiveX Player) - http://www.cult3d.com/download/cult.cab
O16 - DPF: {3E68E405-C6DE-49FF-83AE-41EE9F4C36CE} (Office Update Installation Engine) - http://office.microsoft.com/officeupdate/content/opuc.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsClient.cab28578.cab
O16 - DPF: {9F1C11AA-197B-4942-BA54-47A8489BB47F} (Update Class) - http://v4.windowsupdate.microsoft.com/CAB/x86/unicode/iuctl.CAB?38178.89875
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
O16 - DPF: {F6BF0D00-0B2A-4A75-BF7B-F385591623AF} (Solitaire Showdown Class) - http://messenger.zone.msn.com/binary/SolitaireShowdown.cab30149.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{9A7EE2CD-9CCB-4D2C-A2A9-BF433B777435}: NameServer = 210.80.58.34,210.80.58.42


Can anyone give me some ideas.

Thanks heaps