variuos websites are displayed in blank ??

Dear Sirs ; Of no where. i began to recieve some of my websites in blank; without any error message; I already scanned my computer with 2 antivirus software without success; I checked already my java installation and it is uptodate . anyone knows the solution ??? this is my log file .; Thank s in advance Logfile of Trend Micro HijackThis v2.0.2Scan saved at 4:15:33 PM, on 10/5/2008Platform: Windows XP SP3 (WinNT 5.01.2600)MSIE: Internet Explorer v7.00 (7.00.6000.16705)Boot mode: NormalRunning processes:C:\WINDOWS\System32\smss.exeC:\WINDOWS\system32\winlogon.exeC:\WINDOWS\system32\services.exeC:\WINDOWS\system32\lsass.exeC:\WINDOWS\system32\Ati2evxx.exeC:\WINDOWS\system32\svchost.exeC:\WINDOWS\System32\svchost.exeC:\WINDOWS\system32\svchost.exeC:\Program Files\Alwil Software\Avast4\aswUpdSv.exeC:\Program Files\Alwil Software\Avast4\ashServ.exeC:\WINDOWS\system32\Ati2evxx.exeC:\WINDOWS\system32\spoolsv.exeC:\Program Files\Avira\AntiVir PersonalEdition Premium\sched.exeC:\Program Files\Common Files\Acronis\Schedule2\schedul2.exeC:\Program Files\Avira\AntiVir PersonalEdition Premium\avguard.exeC:\Program Files\Avira\AntiVir PersonalEdition Premium\avesvc.exeC:\WINDOWS\System32\svchost.exeC:\Program Files\Retrospect\Retrospect 7.5\retrorun.exeC:\Program Files\Retrospect\Retrospect Client\RemotSvc.exeC:\Program Files\Retrospect\Retrospect Client\retroclient.exeC:\Program Files\SPAMfighter\sfus.exeC:\WINDOWS\system32\svchost.exeC:\Program Files\Common Files\Acronis\Fomatik\TrueImageTryStartService.exeC:\Program Files\Avira\AntiVir PersonalEdition Premium\avmailc.exeC:\Program Files\Avira\AntiVir PersonalEdition Premium\AVWEBGRD.EXEC:\Program Files\Alwil Software\Avast4\ashMaiSv.exeC:\Program Files\Alwil Software\Avast4\ashWebSv.exeC:\WINDOWS\Explorer.EXEC:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exeC:\Program Files\Acronis\TrueImageHome\TrueImageMonitor.exeC:\Program Files\Java\jre1.6.0_07\bin\jusched.exeC:\Program Files\ATI Technologies\ATI.ACE\Core-Static\MOM.exeC:\Program Files\SPAMfighter\SFAgent.exeC:\WINDOWS\RTHDCPL.EXEC:\WINDOWS\system32\hphmon05.exeC:\Program Files\Hewlett-Packard\HP Software Update\HPWuSchd2.exeC:\Program Files\HP\hpcoretech\hpcmpmgr.exeC:\Program Files\Avira\AntiVir PersonalEdition Premium\avgnt.exeC:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exeC:\Program Files\Acronis\TrueImageHome\TimounterMonitor.exeC:\WINDOWS\system32\ctfmon.exeC:\WINDOWS\system32\msiexec.exeC:\Program Files\Windows Media Player\WMPNSCFG.exeC:\Program Files\Google\GoogleToolbarNotifier\1.2.1128.5462\GoogleToolbarNotifier.exeC:\Program Files\Siber Systems\AI RoboForm\RoboTaskBarIcon.exeC:\Program Files\Nokia\Nokia PC Suite 7\PCSuite.exeC:\Program Files\Nokia\Nokia PC Suite 7\PCSync2.exeC:\Program Files\Messenger\msmsgs.exeC:\WINDOWS\system32\wuauclt.exeC:\Program Files\ATI Technologies\ATI.ACE\Core-Static\ccc.exeC:\Program Files\PC Connectivity Solution\ServiceLayer.exeC:\Program Files\PC Connectivity Solution\Transports\NclMSBTSrv.exeC:\Program Files\PC Connectivity Solution\Transports\NclUSBSrv.exeC:\Program Files\Common Files\Nokia\MPAPI\MPAPI3s.exeC:\Program Files\PC Connectivity Solution\Transports\NclRSSrv.exeC:\Program Files\Trend Micro\HijackThis\HijackThis.exeC:\Program Files\Avira\AntiVir PersonalEdition Premium\avwsc.exeR0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://yahoo.com/R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dllO2 - BHO: RoboForm - {724d43a9-0d85-11d4-9908-00400523e39a} - C:\Program Files\Siber Systems\AI RoboForm\roboform.dllO2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dllO2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dllO3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dllO3 - Toolbar: &RoboForm - {724d43a0-0d85-11d4-9908-00400523e39a} - C:\Program Files\Siber Systems\AI RoboForm\roboform.dllO4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exeO4 - HKLM\..\Run: [TrueImageMonitor.exe] C:\Program Files\Acronis\TrueImageHome\TrueImageMonitor.exeO4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_07\bin\jusched.exe"O4 - HKLM\..\Run: [StartCCC] "C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe" MSRunO4 - HKLM\..\Run: [SPAMfighter Agent] "C:\Program Files\SPAMfighter\SFAgent.exe" update delay 60O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXEO4 - HKLM\..\Run: [HPHUPD05] C:\Program Files\Hewlett-Packard\\{5372B9A6-6E51-4f90-9B40-E0A3B8475C4E}\hphupd05.exeO4 - HKLM\..\Run: [HPHmon05] C:\WINDOWS\system32\hphmon05.exeO4 - HKLM\..\Run: [HP Software Update] "C:\Program Files\Hewlett-Packard\HP Software Update\HPWuSchd2.exe"O4 - HKLM\..\Run: [HP Component Manager] "C:\Program Files\HP\hpcoretech\hpcmpmgr.exe"O4 - HKLM\..\Run: [avgnt] "C:\Program Files\Avira\AntiVir PersonalEdition Premium\avgnt.exe" /minO4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXEO4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe"O4 - HKLM\..\Run: [AcronisTimounterMonitor] C:\Program Files\Acronis\TrueImageHome\TimounterMonitor.exeO4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exeO4 - HKCU\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exeO4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\1.2.1128.5462\GoogleToolbarNotifier.exeO4 - HKCU\..\Run: [RoboForm] "C:\Program Files\Siber Systems\AI RoboForm\RoboTaskBarIcon.exe"O4 - HKCU\..\Run: [PC Suite Tray] "C:\Program Files\Nokia\Nokia PC Suite 7\PCSuite.exe" -onlytrayO4 - HKCU\..\Run: [Nokia.PCSync] "C:\Program Files\Nokia\Nokia PC Suite 7\PCSync2.exe" /NoDialogO4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /backgroundO8 - Extra context menu item: Customize Menu - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComCustomizeIEMenu.htmlO8 - Extra context menu item: Fill Forms - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComFillForms.htmlO8 - Extra context menu item: RoboForm Toolbar - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComShowToolbar.htmlO8 - Extra context menu item: Save Forms - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComSavePass.htmlO9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dllO9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dllO9 - Extra button: Fill Forms - {320AF880-6646-11D3-ABEE-C5DBF3571F46} - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComFillForms.htmlO9 - Extra 'Tools' menuitem: Fill Forms - {320AF880-6646-11D3-ABEE-C5DBF3571F46} - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComFillForms.htmlO9 - Extra button: Save - {320AF880-6646-11D3-ABEE-C5DBF3571F49} - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComSavePass.htmlO9 - Extra 'Tools' menuitem: Save Forms - {320AF880-6646-11D3-ABEE-C5DBF3571F49} - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComSavePass.htmlO9 - Extra button: RoboForm - {724d43aa-0d85-11d4-9908-00400523e39a} - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComShowToolbar.htmlO9 - Extra 'Tools' menuitem: RoboForm Toolbar - {724d43aa-0d85-11d4-9908-00400523e39a} - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComShowToolbar.htmlO9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exeO9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exeO9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exeO9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exeO16 - DPF: {44990301-3C9D-426D-81DF-AAB636FA4345} (Symantec Script Runner Class) - https://www-secure.symantec.com/techsupp/asa/ss/sa/sa_cabs/tgctlsr.cabO16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/microso...en/x86/client/wuweb_site.cab?1222567331875O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microso...en/x86/client/muweb_site.cab?1222567321750O23 - Service: Acronis Scheduler2 Service (AcrSch2Svc) - Acronis - C:\Program Files\Common Files\Acronis\Schedule2\schedul2.exeO23 - Service: Avira AntiVir Premium MailGuard (AntiVirMailService) - Avira GmbH - C:\Program Files\Avira\AntiVir PersonalEdition Premium\avmailc.exeO23 - Service: Avira AntiVir Premium Scheduler (AntiVirScheduler) - Avira GmbH - C:\Program Files\Avira\AntiVir PersonalEdition Premium\sched.exeO23 - Service: Avira AntiVir Premium Guard (AntiVirService) - Avira GmbH - C:\Program Files\Avira\AntiVir PersonalEdition Premium\avguard.exeO23 - Service: Avira AntiVir Premium WebGuard (antivirwebservice) - Avira GmbH - C:\Program Files\Avira\AntiVir PersonalEdition Premium\AVWEBGRD.EXEO23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exeO23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exeO23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exeO23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exeO23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exeO23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exeO23 - Service: Avira AntiVir Premium MailGuard helper service (AVEService) - Avira GmbH - C:\Program Files\Avira\AntiVir PersonalEdition Premium\avesvc.exeO23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exeO23 - Service: Retrospect Launcher (RetroLauncher) - EMC Corporation - C:\Program Files\Retrospect\Retrospect 7.5\retrorun.exeO23 - Service: Retrospect Client - EMC - C:\Program Files\Retrospect\Retrospect Client\RemotSvc.exeO23 - Service: ServiceLayer - Nokia. - C:\Program Files\PC Connectivity Solution\ServiceLayer.exeO23 - Service: SPAMfighter Update Service - SPAMfighter ApS - C:\Program Files\SPAMfighter\sfus.exeO23 - Service: Acronis Try And Decide Service (TryAndDecideService) - Unknown owner - C:\Program Files\Common Files\Acronis\Fomatik\TrueImageTryStartService.exe--End of file - 11159 bytes