click on windows start button does not show programs

Windows start button stops working. Clicking on start button does not show list of start menu.

Also when I double click on any shortcut for progam on the desktop, system does not launch that program, instead launches properties for the shortcut.

Once this happens I have to ctrl -alt - del and have to shutdown my computer.

Once rebooted the system works fine for some time then again it stops working.

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 6:21:52 PM, on 8/13/2008
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16705)
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Microsoft Windows OneCare Live\Antivirus\MsMpEng.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\CTsvcCDA.EXE
C:\Program Files\Intel\Intel Application Accelerator\iaantmon.exe
C:\Program Files\NetScaler\NetScaler Secure Remote Access\nsverctl.exe
C:\Program Files\Microsoft Windows OneCare Live\OcHealthMon.exe
C:\WINDOWS\system32\HPZipm12.exe
C:\Program Files\Dantz\Retrospect\retrorun.exe
C:\Program Files\Dell Support Center\bin\sprtsvc.exe
c:\Program Files\Microsoft SQL Server\90\Shared\sqlwriter.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Microsoft Windows OneCare Live\Firewall\msfwsvc.exe
C:\Program Files\Microsoft Windows OneCare Live\winss.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Canon\CAL\CALMAIN.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Microsoft Office\Office12\GrooveMonitor.exe
C:\Program Files\Microsoft Windows OneCare Live\winssnotify.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\NetScaler\NetScaler Secure Remote Access\nsload.exe
C:\Program Files\Digital Line Detect\DLG.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpotdd01.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://us.rd.yahoo.com/customize/ie/defaults/su/msgr8/*http://www.yahoo.com
O2 - BHO: (no name) - rsion - (no file)
O2 - BHO: (no name) - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - (no file)
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll (file missing)
O2 - BHO: (no name) - {3AC9B98E-9691-4987-9A7B-C4FF6032C51D} - (no file)
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG8\avgssie.dll (file missing)
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\system32\dla\tfswshx.dll
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\Program Files\Microsoft Office\Office12\GrooveShellExtensions.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: (no name) - {A403F725-B9E1-4216-8275-481B6048D7C2} - (no file)
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\2.0.301.7164\swg.dll
O2 - BHO: (no name) - {CA4F0D8D-5F2B-4F16-838A-8D52249EAB21} - C:\WINDOWS\system32\cbxvvur.dll (file missing)
O3 - Toolbar: (no name) - {BA52B914-B692-46c4-B683-905236F6F655} - (no file)
O4 - HKLM\..\Run: [dscactivate] "C:\Program Files\Dell Support Center\gs_agent\custom\dsca.exe"
O4 - HKLM\..\Run: [DellSupportCenter] "C:\Program Files\Dell Support Center\bin\sprtcmd.exe" /P DellSupportCenter
O4 - HKLM\..\Run: [GrooveMonitor] "C:\Program Files\Microsoft Office\Office12\GrooveMonitor.exe"
O4 - HKLM\..\Run: [OneCareUI] "C:\Program Files\Microsoft Windows OneCare Live\winssnotify.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [LDM] \Program\BackWeb-8876480.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Citrix Access Gateway Enterprise Edition.lnk = C:\Program Files\NetScaler\NetScaler Secure Remote Access\nsload.exe
O4 - Global Startup: Digital Line Detect.lnk = ?
O4 - Global Startup: hpoddt01.exe.lnk = ?
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra button: Send to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~4\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: S&end to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~4\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~4\Office12\REFIEBAR.DLL
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\system32\Shdocvw.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.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
O10 - Unknown file in Winsock LSP: c:\windows\system32\nwprovau.dll
O16 - DPF: {0188E17F-B180-48A6-B199-055C219601B5} (DV_GistFontResourcesforWeb Control) - http://mail.sify.com/IE/Cab/DVData.Cab
O16 - DPF: {01A88BB1-1174-41EC-ACCB-963509EAE56B} (SysProWmi Class) - http://support.dell.com/systemprofiler/SysPro.CAB
O16 - DPF: {0246ECA8-996F-11D1-BE2F-00A0C9037DFE} (TDServer Control) - http://www.aajtak.com/wfplayer/tdserver.cab
O16 - DPF: {0E5F0222-96B9-11D3-8997-00104BD12D94} (PCPitstop Utility) - http://www.pcpitstop.com/pcpitstop/PCPitStop.CAB
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6/SharedContent/vc/bin/AvSniff.cab
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (Installation Support) - C:\Program Files\Yahoo!\Common\Yinsthelper20073151.dll
O16 - DPF: {474F00F5-3853-492C-AC3A-476512BBC336} (UploadListView Class) - http://picasaweb.google.com/s/v/30.66/uploader2.cab
O16 - DPF: {493ACF15-5CD9-4474-82A6-91670C3DD66E} (LinkedIn ContactFinderControl) - http://www.linkedin.com/cab/LinkedInContactFinderControl.cab
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://by103fd.bay103.hotmail.msn.com/resources/MsnPUpld.cab
O16 - DPF: {54BE6B6F-3056-470B-97E1-BB92E051B6C4} (DeviceEnum Class) - http://h20264.www2.hp.com/ediags/dd/install/HPDriverDiagnosticsxp2k.cab
O16 - DPF: {56393399-041A-4650-94C7-13DFCB1F4665} (PSFormX Control) - http://www3.ca.com/securityadvisor/pestscan/pestscan.cab
O16 - DPF: {5ED80217-570B-4DA9-BF44-BE107C0EC166} (Windows Live Safety Center Base Module) - http://cdn.scan.onecare.live.com/resource/download/scanner/wlscbase5036.cab
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://www.update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1195282043859
O16 - DPF: {8714912E-380D-11D5-B8AA-00D0B78F3D48} (Yahoo! Webcam Upload Wrapper) - http://chat.yahoo.com/cab/yuplapp.cab
O16 - DPF: {8BC53B30-32E4-4ED3-BEF9-DB761DB77453} (CInstallLPCtrl Object) - http://u3.sandisk.com/download/apps/LPInstaller.CAB
O16 - DPF: {94B82441-A413-4E43-8422-D49930E69764} (TLIEFlashObj Class) - https://echat.us.dell.com/Media/VisitorChatENU/TLIEFlash.CAB
O16 - DPF: {95EEE69E-27B4-4D13-BD32-766617A16909} (NDTVVideo.MPlayer) - http://www.ndtv.com/video/NDTVseekvideo.CAB
O16 - DPF: {9600F64D-755F-11D4-A47F-0001023E6D5A} (Shutterfly Picture Upload Plugin) - http://web1.shutterfly.com/downloads/Uploader.cab
O16 - DPF: {9C024426-7859-4B2D-AB4C-B1E370AE7549} - http://us.mcafee.com/Apps/WSC/en-us/WscWlanScannerCtrl.cab
O16 - DPF: {A57B79D8-9501-42B7-BA9B-B961454712F2} (WLANinfo.WLANX) - https://www.jiwire.com/activeX/wlaninfo.cab
O16 - DPF: {A93B47FD-9BF6-4DA8-97FC-9270B9D64A6C} (VaPgCtrl Class) - http://www.dlink.com/products/livedemo/plugin/h263ctrl.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMessengerSetupDownloader.cab
O16 - DPF: {D4323BF2-006A-4440-A2F5-27E3E7AB25F8} (Virtools WebPlayer Class) - http://a532.g.akamai.net/f/532/6712/5m/virtools.download.akamai.com/6712/player/install/installer.exe
O16 - DPF: {E504EE6E-47C6-11D5-B8AB-00D0B78F3D48} (Yahoo! Webcam Viewer Wrapper) - http://chat.yahoo.com/cab/yvwrctl.cab
O16 - DPF: {E7DBFB6C-113A-47CF-B278-F5C6AF4DE1BD} - http://download.abacast.com/download/files/abasetup163.cab
O16 - DPF: {E85FDB2D-2819-11D4-A59A-00600891E126} (IPlugin Control) - http://mail.sify.com/IE/Cab/iPlugin.Cab
O16 - DPF: {EB387D2F-E27B-4D36-979E-847D1036C65D} (QDiagHUpdateObj Class) - http://h30043.www3.hp.com/aio/en/check/qdiagh.cab?326
O16 - DPF: {EF791A6B-FC12-4C68-99EF-FB9E207A39E6} (McFreeScan Class) - http://download.mcafee.com/molbin/iss-loc/mcfscan/2,1,0,4915/mcfscan.cab
O16 - DPF: {F58E1CEF-A068-4C15-BA5E-587CAF3EE8C6} (MSN Chat Control 4.5) - http://chat.msn.com/controls/msnchat45.cab
O16 - DPF: {F996C1D0-AC35-43EC-A024-68502CEC84AE} (Confidence Online Portal Edition for Ameritrade) - https://scan.wholesecurity.com/ameritrade/winxp/CATOnlineW2K.dll
O16 - DPF: {FFFFFFFF-CAFE-BABE-BABE-00AA0055595A} - http://www.networksolutionsemailpopwizard.com/TrueSwitchEC.exe
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\Program Files\Microsoft Office\Office12\GrooveSystemServices.dll
O20 - Winlogon Notify: cbxvvur - cbxvvur.dll (file missing)
O23 - Service: Apache2 - Apache Software Foundation - C:\Program Files\Apache Group\Apache2\bin\Apache.exe
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Canon Camera Access Library 8 (CCALib8) - Canon Inc. - C:\Program Files\Canon\CAL\CALMAIN.exe
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\system32\CTsvcCDA.EXE
O23 - Service: DSBrokerService - Unknown owner - C:\Program Files\DellSupport\brkrsvc.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: IAA Event Monitor (IAANTMon) - Intel Corporation - C:\Program Files\Intel\Intel Application Accelerator\iaantmon.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: iPod Service - Apple Computer, Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: NetScaler SSL VPN Version Control (nsverctl) - Citrix Systems, Inc - C:\Program Files\NetScaler\NetScaler Secure Remote Access\nsverctl.exe
O23 - Service: OracleDBConsoleGOLD - Oracle Corporation - C:\oracle\product\10.2.0\db_1\bin\nmesrvc.exe
O23 - Service: OracleOraDb10g_home1iSQL*Plus - Oracle - C:\oracle\product\10.2.0\db_1\bin\isqlplussvc.exe
O23 - Service: OracleOraDb10g_home1TNSListener - Unknown owner - C:\oracle\product\10.2.0\db_1\BIN\TNSLSNR.exe
O23 - Service: OracleServiceGOLD - Oracle Corporation - c:\oracle\product\10.2.0\db_1\bin\ORACLE.EXE
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: Retrospect Launcher (RetroLauncher) - Dantz Development Corporation - C:\Program Files\Dantz\Retrospect\retrorun.exe
O23 - Service: SupportSoft Sprocket Service (dellsupportcenter) (sprtsvc_dellsupportcenter) - SupportSoft, Inc. - C:\Program Files\Dell Support Center\bin\sprtsvc.exe
O23 - Service: Apache Tomcat (Tomcat5) - Apache Software Foundation - C:\Tomcat 5.0\bin\tomcat5.exe

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