Slow- many errors, possible virus

My virus scan says I have no virus and I've done a system restore, but I still keep getting a blue screen error message, several of my control panel applications will open but not populate, and my computer is very slow. Logfile of HijackThis v1.99.1 Scan saved at 5:04:18 PM, on 4/17/2007 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:\Program Files\Windows Defender\MsMpEng.exe C:\WINDOWS\System32\svchost.exe C:\WINDOWS\system32\spoolsv.exe C:\Program Files\Bonjour\mDNSResponder.exe C:\Program Files\ewido anti-spyware 4.0\guard.exe C:\Program Files\Dell\QuickSet\NICCONFIGSVC.exe C:\Program Files\Sophos\Sophos Anti-Virus\SAVAdminService.exe C:\Program Files\Sophos\AutoUpdate\ALsvc.exe C:\WINDOWS\Explorer.EXE C:\WINDOWS\system32\svchost.exe C:\WINDOWS\System32\WLTRYSVC.EXE C:\WINDOWS\system32\fxssvc.exe C:\WINDOWS\System32\bcmwltry.exe C:\WINDOWS\system32\hkcmd.exe C:\WINDOWS\system32\igfxpers.exe C:\WINDOWS\system32\igfxsrvc.exe C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe C:\Program Files\Synaptics\SynTP\SynTPEnh.exe C:\WINDOWS\system32\wuauclt.exe C:\WINDOWS\system32\WLTRAY.exe C:\WINDOWS\stsystra.exe C:\Program Files\Dell\QuickSet\quickset.exe C:\Program Files\CyberLink\PowerDVD\DVDLauncher.exe C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe C:\Program Files\Corel\Corel Photo Album 6\MediaDetect.exe C:\WINDOWS\system32\dla\tfswctrl.exe C:\Program Files\HP\HP Software Update\HPWuSchd2.exe C:\Program Files\Microsoft Works\WksSb.exe C:\WINDOWS\system32\NWTRAY.EXE C:\WINDOWS\nosign.EXE C:\Program Files\Common Files\Real\Update_OB\realsched.exe C:\Program Files\QuickTime\qttask.exe C:\Program Files\iTunes\iTunesHelper.exe C:\Program Files\Windows Defender\MSASCui.exe C:\Program Files\NetWaiting\netWaiting.exe C:\Program Files\Dell Support\DSAgnt.exe C:\Program Files\iPod\bin\iPodService.exe C:\Program Files\Sophos\AutoUpdate\ALMon.exe C:\Program Files\Digital Line Detect\DLG.exe C:\Program Files\HP\Digital Imaging\bin\hpqtra08.exe C:\WINDOWS\system32\ntvdm.exe C:\Program Files\Kodak\Kodak EasyShare software\bin\EasyShare.exe C:\Program Files\Kodak\KODAK Software Updater\7288971\Program\Kodak Software Updater.exe C:\Program Files\Common Files\Microsoft Shared\Works Shared\wkcalrem.exe C:\WINDOWS\system32\wuauclt.exe C:\Program Files\Impulse\PolicyKey.exe C:\PROGRA~1\MOZILL~1\FIREFOX.EXE C:\Program Files\HP\Digital Imaging\bin\hpqgalry.exe C:\Program Files\Hijackthis\HijackThis.exe R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.dell.com R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.dell.com R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://v4.windowsupdate.microsoft.com/ R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\userinit.exe,C:\WINDOWS\system32\mbti.exe O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\system32\dla\tfswshx.dll O2 - BHO: Browser Address Error Redirector - {CA6319C0-31B7-401E-A518-A07C3DB8F777} - c:\Program Files\BAE\BAE.dll O4 - HKLM\..\Run: [igfxtray] C:\WINDOWS\system32\igfxtray.exe O4 - HKLM\..\Run: [igfxhkcmd] C:\WINDOWS\system32\hkcmd.exe O4 - HKLM\..\Run: [igfxpers] C:\WINDOWS\system32\igfxpers.exe O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe O4 - HKLM\..\Run: [Broadcom Wireless Manager UI] C:\WINDOWS\system32\WLTRAY.exe O4 - HKLM\..\Run: [SigmatelSysTrayApp] stsystra.exe O4 - HKLM\..\Run: [Dell QuickSet] C:\Program Files\Dell\QuickSet\quickset.exe O4 - HKLM\..\Run: [DVDLauncher] "C:\Program Files\CyberLink\PowerDVD\DVDLauncher.exe" O4 - HKLM\..\Run: [ISUSPM Startup] "C:\Program Files\Common Files\InstallShield\UpdateService\isuspm.exe" -startup O4 - HKLM\..\Run: [ISUSScheduler] "C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe" -start O4 - HKLM\..\Run: [Corel Photo Downloader] C:\Program Files\Corel\Corel Photo Album 6\MediaDetect.exe O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe O4 - HKLM\..\Run: [HP Software Update] C:\Program Files\HP\HP Software Update\HPWuSchd2.exe O4 - HKLM\..\Run: [SemanticInsight] C:\Program Files\RXToolBar\Semantic Insight\SemanticInsight.exe O4 - HKLM\..\Run: [WorksFUD] C:\Program Files\Microsoft Works\wkfud.exe O4 - HKLM\..\Run: [Microsoft Works Portfolio] C:\Program Files\Microsoft Works\WksSb.exe /AllUsers O4 - HKLM\..\Run: [Microsoft Works Update Detection] C:\Program Files\Microsoft Works\WkDetect.exe O4 - HKLM\..\Run: [MSKDetectorExe] C:\Program Files\McAfee\SpamKiller\MSKDetct.exe /uninstall O4 - HKLM\..\Run: [NWTRAY] NWTRAY.EXE O4 - HKLM\..\Run: [Nosign_Dual] C:\WINDOWS\nosign.EXE "Dual Mode Camera" O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe" O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k O4 - HKLM\..\Run: [Windows Defender] "C:\Program Files\Windows Defender\MSASCui.exe" -hide O4 - HKLM\..\Run: [EF1EBEBF] C:\WINDOWS\system32\nlkfev71560012.exe O4 - HKCU\..\Run: [ModemOnHold] C:\Program Files\NetWaiting\netWaiting.exe O4 - HKCU\..\Run: [DellSupport] "C:\Program Files\Dell Support\DSAgnt.exe" /startup O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe O4 - Global Startup: AutoUpdate Monitor.lnk = C:\Program Files\Sophos\AutoUpdate\ALMon.exe O4 - Global Startup: Digital Line Detect.lnk = ? O4 - Global Startup: HP Digital Imaging Monitor.lnk = C:\Program Files\HP\Digital Imaging\bin\hpqtra08.exe O4 - Global Startup: HP Image Zone Fast Start.lnk = C:\Program Files\HP\Digital Imaging\bin\hpqthb08.exe O4 - Global Startup: KeyAccess.lnk = ? O4 - Global Startup: Kodak EasyShare software.lnk = C:\Program Files\Kodak\Kodak EasyShare software\bin\EasyShare.exe O4 - Global Startup: KODAK Software Updater.lnk = C:\Program Files\Kodak\KODAK Software Updater\7288971\Program\Kodak Software Updater.exe O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE O4 - Global Startup: Microsoft Works Calendar Reminders.lnk = ? O4 - Global Startup: PolicyKey.lnk = C:\Program Files\Impulse\PolicyKey.exe O4 - Global Startup: QuickBooks Update Agent.lnk = C:\Program Files\Common Files\Intuit\QuickBooks\QBUpdate\qbupdate.exe O8 - Extra context menu item: &Define - C:\Program Files\Common Files\Microsoft Shared\Reference 2001\A\ERS_DEF.HTM O8 - Extra context menu item: &Search - http://kl.bar.need2find.com/KL/menusearch.html?p=KL O8 - Extra context menu item: Look Up in &Encyclopedia - C:\Program Files\Common Files\Microsoft Shared\Reference 2001\A\ERS_ENC.HTM O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2_03\bin\npjpi142_03.dll O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2_03\bin\npjpi142_03.dll O9 - Extra button: Encarta Encyclopedia - {2FDEF853-0759-11D4-A92E-006097DBED37} - C:\Program Files\Common Files\Microsoft Shared\Reference 2001\A\ERS_ENC.HTM O9 - Extra 'Tools' menuitem: Encarta Encyclopedia - {2FDEF853-0759-11D4-A92E-006097DBED37} - C:\Program Files\Common Files\Microsoft Shared\Reference 2001\A\ERS_ENC.HTM O9 - Extra button: Define - {5DA9DE80-097A-11D4-A92E-006097DBED37} - C:\Program Files\Common Files\Microsoft Shared\Reference 2001\A\ERS_DEF.HTM O9 - Extra 'Tools' menuitem: Define - {5DA9DE80-097A-11D4-A92E-006097DBED37} - C:\Program Files\Common Files\Microsoft Shared\Reference 2001\A\ERS_DEF.HTM O9 - Extra button: Bonjour - {7F9DB11C-E358-4ca6-A83D-ACC663939424} - C:\Program Files\Bonjour\ExplorerPlugin.dll O9 - Extra button: AIM - {AC9E2541-2814-11d5-BC6D-00B0D0A1DE45} - C:\Program Files\AIM\aim.exe O9 - Extra button: (no name) - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - (no file) O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe O10 - Unknown file in Winsock LSP: c:\program files\bonjour\mdnsnsp.dll O16 - DPF: {7E980B9B-8AE5-466A-B6D6-DA8CF814E78A} (MJLauncherCtrl Class) - http://zone.msn.com/bingame/chnz/default/mjolauncher.cab O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (MSN Games - Installer) - http://cdn2.zone.msn.com/binFramework/v10/ZIntro.cab55579.cab O16 - DPF: {D77EF652-9A6B-40C8-A4B9-1C0697C6CF41} (TikGames Online Control) - http://zone.msn.com/bingame/gold/default/gf.cab O16 - DPF: {DF780F87-FF2B-4DF8-92D0-73DB16A1543A} (PopCapLoader Object) - http://zone.msn.com/bingame/chzl/default/popcaploader_v10.cab O16 - DPF: {E5D419D6-A846-4514-9FAD-97E826C84822} (HeartbeatCtl Class) - http://fdl.msn.com/zone/datafiles/heartbeat.cab O18 - Filter: text/html - {2AB289AE-4B90-4281-B2AE-1F4BB034B647} - C:\Program Files\RXToolBar\sfcont.dll O20 - AppInit_DLLs: KATRACK.DLL O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxdev.dll O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll O23 - Service: Bonjour Service - Apple Computer, Inc. - C:\Program Files\Bonjour\mDNSResponder.exe O23 - Service: Print Spooler Service (bzoooeyyauiudel) - Unknown owner - C:\WINDOWS\system32\nlkfev71560012.exe O23 - Service: COM+ System Source (COMSysSRC) - Unknown owner - C:\WINDOWS\system32\vmnat.exe (file missing) O23 - Service: Client Update Service for Novell (cusrvc) - Novell, Inc. - C:\WINDOWS\system32\cusrvc.exe O23 - Service: ewido anti-spyware 4.0 guard - Anti-Malware Development a.s. - C:\Program Files\ewido anti-spyware 4.0\guard.exe O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1050\Intel 32\IDriverT.exe O23 - Service: iPod Service - Apple Computer, Inc. - C:\Program Files\iPod\bin\iPodService.exe O23 - Service: NICCONFIGSVC - Dell Inc. - C:\Program Files\Dell\QuickSet\NICCONFIGSVC.exe O23 - Service: Windows Network Latency Controller (nlc) - Unknown owner - C:\WINDOWS\system32\mbti.exe (file missing) O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe O23 - Service: Sophos Anti-Virus status reporter (SAVAdminService) - Sophos Plc - C:\Program Files\Sophos\Sophos Anti-Virus\SAVAdminService.exe O23 - Service: Sophos Anti-Virus (SAVService) - Sophos Plc - C:\Program Files\Sophos\Sophos Anti-Virus\SavService.exe O23 - Service: Sophos AutoUpdate Service - Sophos Plc - C:\Program Files\Sophos\AutoUpdate\ALsvc.exe O23 - Service: Dell Wireless WLAN Tray Service (wltrysvc) - Unknown owner - C:\WINDOWS\System32\WLTRYSVC.EXE