slow slow XP

just started running exceeding slow. below is HijackThis log less a few obviously (??) benign entries. Any ideas? Thanks.

Logfile of HijackThis v1.99.1
Scan saved at 9:35:02 AM, on 7/24/2006
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes (partial list):
C:\WINDOWS\system32\LEXBCES.EXE
C:\Program Files\Yahoo!\browser\ybrwicon.exe
C:\Program Files\Visual Networks\Visual IP InSight\SBC\IPClient.exe
C:\Program Files\Visual Networks\Visual IP InSight\SBC\IPMon32.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe
C:\PROGRA~1\Yahoo!\browser\ycommon.exe
C:\PROGRA~1\SIMPLE~1\PHOTOS~1\data\Xtras\mssysmgr.exe
F:\Program Files\Ashampoo\Ashampoo Magical Defrag\bin\aDefragService.exe
C:\WINDOWS\System32\svchost.exe
F:\Program Files\Broderbund\Mavis Beacon Teaches Typing 15\MiniMavis.exe
C:\WINDOWS\system32\fxssvc.exe
C:\WINDOWS\system32\wuauclt.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://news.google.com/news?

edit=0&t=1130473051&ncft=0
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer provided by

Verizon Online
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = 127.0.0.1
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program

Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program

files\google\googletoolbar2.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O4 - HKLM\..\Run: [Lexmark X73 Button Monitor] C:\PROGRA~1\LEXMAR~1\ACMonitor_X73.exe
O4 - HKLM\..\Run: [Lexmark X73 Button Manager] C:\PROGRA~1\LEXMAR~1\AcBtnMgr_X73.exe
O4 - HKLM\..\Run: [PrinTray] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\printray.exe
O4 - HKLM\..\Run: [Logitech Utility] Logi_MwX.Exe
O4 - HKLM\..\Run: [YBrowser] C:\Program Files\Yahoo!\browser\ybrwicon.exe
O4 - HKLM\..\Run: [IPInSightLAN 01] "C:\Program Files\Visual Networks\Visual IP InSight\SBC\IPClient.exe"

-l
O4 - HKLM\..\Run: [IPInSightMonitor 01] "C:\Program Files\Visual Networks\Visual IP

InSight\SBC\IPMon32.exe"
O4 - HKLM\..\Run: [MediaFace Integration] F:\Program Files_Games\MediaFace\SetHook.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe"
04 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKCU\..\Run: [Yahoo! Pager] 1
O4 - HKCU\..\Run: [PhotoShow Deluxe Media Manager] C:\PROGRA~1\SIMPLE~1\PHOTOS~1\data\Xtras\mssysmgr.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0

\Reader\reader_sl.exe
O4 - Global Startup: Personal Coach.lnk = F:\Program Files\Broderbund\Mavis Beacon Teaches Typing 15

\MiniMavis.exe
O4 - Global Startup: SBC Self Support Tool.lnk = C:\Program Files\SBC Self Support Tool\bin\matcli.exe
O8 - Extra context menu item: &Google Search - res://c:\program

files\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: &Translate English Word - res://c:\program

files\google\GoogleToolbar2.dll/cmwordtrans.html
O8 - Extra context menu item: Backward Links - res://c:\program

files\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: Cached Snapshot of Page - res://c:\program

files\google\GoogleToolbar2.dll/cmcache.html
O8 - Extra context menu item: E&xport to Microsoft Excel - res://F:\PROGRA~2\MICROS~2\OFFICE11

\EXCEL.EXE/3000
O8 - Extra context menu item: Similar Pages - res://c:\program

files\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: Translate Page into English - res://c:\program

files\google\GoogleToolbar2.dll/cmtrans.html
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - F:\PROGRA~2\MICROS~2\OFFICE11

\REFIEBAR.DLL
O9 - Extra button: Researcher - {9455301C-CF6B-11D3-A266-00C04F689C50} - C:\Program Files\Common

Files\Microsoft Shared\Encarta Researcher\EROPROJ.DLL
O9 - Extra button: Yahoo! Messenger - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - C:\PROGRA~1\Yahoo!\MESSEN~1

\YPager.exe
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - C:\PROGRA~1

\Yahoo!\MESSEN~1\YPager.exe
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
O12 - Plugin for .mp3: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin3.dll
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) -

http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) -

http://files.member.yahoo.com/dl/installs/sbc/yinst.cab
O16 - DPF: {406B5949-7190-4245-91A9-30A17DE16AD0} (Snapfish Activia) -

http://www.snapfish.com/SnapfishActivia.cab
O23 - Service: AntiVir PersonalEdition Classic Guard (AntiVirService) - AVIRA GmbH - C:\Program

Files\AntiVir PersonalEdition Classic\avguard.exe
O23 - Service: AshampooDefragService - - F:\Program Files\Ashampoo\Ashampoo Magical

Defrag\bin\aDefragService.exe
O23 - Service: YPCService - Yahoo! Inc. - C:\WINDOWS\system32\YPCSER~1.EXE