When I boot the pc, it begins the process without problem. Lately, after loading everything, the computer simply freezes. Mouse clicks do not work although the cursor moves; keyboard strokes do not work.

This is my pc's HiJack This log:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 11:58:55 AM, on 8/20/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal

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:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\WINDOWS\system32\rundll32.exe
C:\PROGRA~1\AVG\AVG8\avgtray.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Microsoft ActiveSync\wcescomm.exe
C:\Program Files\Real\RealPlayer\RealPlay.exe
C:\PROGRA~1\MI3AA1~1\rapimgr.exe
C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
C:\PROGRA~1\AVG\AVG8\avgfws8.exe
C:\WINDOWS\System32\svchost.exe
C:\PROGRA~1\AVG\AVG8\avgam.exe
C:\PROGRA~1\AVG\AVG8\avgrsx.exe
C:\PROGRA~1\AVG\AVG8\avgnsx.exe
C:\Program Files\Outlook Express\MSIMN.EXE
C:\WINDOWS\system32\wscntfy.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
O1 - Hosts: HP54B0AF HP0017A454B0AF
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Program Files\Real\RealPlayer\rpbrowserrecordplugin.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG8\avgssie.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O2 - BHO: AVGTOOLBAR - {A057A204-BACC-4D26-9990-79A187E2698E} - C:\PROGRA~1\AVG\AVG8\AVGTOO~1.DLL
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\2.1.1119.1736\swg.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: Live Search Club Toolbar - {719D74AB-1AF9-43a1-8C62-D8750628D93E} - C:\Program Files\Live Search Club Toolbar\Toolbar.dll
O3 - Toolbar: AVGTOOLBAR - {A057A204-BACC-4D26-9990-79A187E2698E} - C:\PROGRA~1\AVG\AVG8\AVGTOO~1.DLL
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [BluetoothAuthenticationAgent] rundll32.exe bthprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM\..\Run: [AVG8_TRAY] C:\PROGRA~1\AVG\AVG8\avgtray.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [H/PC Connection Agent] "C:\Program Files\Microsoft ActiveSync\wcescomm.exe"
O4 - HKUS\S-1-5-18\..\RunOnce: [RunNarrator] Narrator.exe (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\RunOnce: [tscuninstall] %systemroot%\system32\tscupgrd.exe (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\RunOnce: [RunNarrator] Narrator.exe (User 'Default user')
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O8 - Extra context menu item: E&xport to Microsoft Excel - res://G:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Yahoo! &SMS - file:///C:\Program Files\Yahoo!\Common/ycsms.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra button: Create Mobile Favorite - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MI3AA1~1\INetRepl.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MI3AA1~1\INetRepl.dll
O9 - Extra 'Tools' menuitem: Create Mobile Favorite… - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MI3AA1~1\INetRepl.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - G:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: AIM - {AC9E2541-2814-11d5-BC6D-00B0D0A1DE45} - G:\toshibabu\Program Files\AIM\aim.exe
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\system32\Shdocvw.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nwprovau.dll
O12 - Plugin for .pdf: C:\Program Files\Internet Explorer\PLUGINS\nppdf32.dll
O15 - Trusted Zone: www.bankofamerica.com
O16 - DPF: {01A88BB1-1174-41EC-ACCB-963509EAE56B} (SysProWmi Class) - http://support.dell.com/systemprofiler/SysPro.CAB
O16 - DPF: {05CA9FB0-3E3E-4B36-BF41-0E3A5CAA8CD8} (Office Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=67633
O16 - DPF: {11818680-FCF6-11D0-9808-0800092A4865} (Adobe Form Control) - http://www.jud2.state.ct.us/webforms/Codebase/FormCtl.cab
O16 - DPF: {1663ed61-23eb-11d2-b92f-008048fdd814} (MeadCo ScriptX Advanced) - http://www.printsew.com/smsx.cab
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {193C772A-87BE-4B19-A7BB-445B226FE9A1} (ewidoOnlineScan Control) - http://download.ewido.net/ewidoOnlineScan.cab
O16 - DPF: {1F2F4C9E-6F09-47BC-970D-3C54734667FE} (LSSupCtl Class) - https://www-secure.symantec.com/techsupp/as…rl/LSSupCtl.cab
O16 - DPF: {224F7DEA-B7C1-11D3-AB40-00902712A5C9} (PLSAddin Class) - http://www.jud2.state.ct.us/webforms/codebase/plsspeller.cab
O16 - DPF: {2D3502EE-9D6D-11D1-86CC-080009B6ACE6} (Adobe Barcode Control) - http://www.jud2.state.ct.us/webforms/codebase/jfbarcode.cab
O16 - DPF: {362C56AA-6E4F-40C7-A0B5-85501DBDAD77} (Scanner.SysScanner) - http://i.dell.com/images/global/js/scanner/SysProExe.cab
O16 - DPF: {48DD0448-9209-4F81-9F6D-D83562940134} (MySpace Uploader Control) - http://lads.myspace.com/upload/MySpaceUploader1006.cab
O16 - DPF: {49232000-16E4-426C-A231-62846947304B} (SysData Class) - http://ipgweb.cce.hp.com/rdqaio2/downloads/sysinfo.cab
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://gfx1.hotmail.com/mail/w2/resources/MSNPUpld.cab
O16 - DPF: {54BE6B6F-3056-470B-97E1-BB92E051B6C4} (DeviceEnum Class) - http://h20264.www2.hp.com/ediags/dd/instal…nosticsxp2k.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/microsoftupdat…b?1193251006921
O16 - DPF: {65FDEDF3-8ED9-4F5B-825E-18C2D44191A7} (OneCCCtl Class) - http://d.66.155.171.22.downloads.estara.co…789703OneCC.cab
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdat…b?1193250771046
O16 - DPF: {94B82441-A413-4E43-8422-D49930E69764} (TLIEFlashObj Class) - https://echat.us.dell.com/Media/VisitorChat/TLIEFlash.CAB
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://acs.pandasoftware.com/activescan/as5free/asinst.cab
O16 - DPF: {AB86CE53-AC9F-449F-9399-D8ABCA09EC09} (Get_ActiveX Control) - https://h17000.www1.hp.com/ewfrf-JAVA/Secur…loadManager.ocx
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (MSN Games - Installer) - http://cdn2.zone.msn.com/binFramework/v10/…ro.cab56649.cab
O16 - DPF: {DF780F87-FF2B-4DF8-92D0-73DB16A1543A} (PopCapLoader Object) - http://download.games.yahoo.com/games/web_…aploader_v6.cab
O16 - DPF: {E5D419D6-A846-4514-9FAD-97E826C84822} (HeartbeatCtl Class) - http://fdl.msn.com/zone/datafiles/heartbeat.cab
O16 - DPF: {E856B973-45FD-4559-8F82-EAB539144667} (Dell PC Checkup Installer Control) - http://pccheckup.dellfix.com/rel/35/install/gtdownde.cab
O16 - DPF: {EB387D2F-E27B-4D36-979E-847D1036C65D} (QDiagHUpdateObj Class) - http://h30155.www3.hp.com/ediags/hpfix/aio…/qdiagh.cab?326
O16 - DPF: {EF2FB80F-0975-408E-A871-B00CC863478A} (Adobe Soft Font Installer) - http://www.jud2.state.ct.us/webforms/codeb…ntinstaller.cab
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG8\avgpp.dll
O20 - AppInit_DLLs: avgrsstx.dll
O23 - Service: AVG8 WatchDog (avg8wd) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
O23 - Service: AVG8 Firewall (avgfws8) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgfws8.exe

–
End of file - 8830 bytes


This has only been happening for about a week.

No error messages. Nothing recently installed. PC has had the same setup for over six months.
Ran CleanUp! and Spybot S&D. Spybot found nothing.

Thank you in advance.

C