My home page keeps going back to about:blank. Any help would be appreciated.

Here's my log:

Logfile of HijackThis v1.99.1
Scan saved at 8:59:26 PM, on 11/21/2006
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\System32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\WINNT\Explorer.EXE
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\Program Files\ewido\security suite\ewidoctrl.exe
C:\WINNT\System32\hkcmd.exe
C:\Program Files\Common Files\SafeNet Sentinel\Sentinel Protection Server\WinNT\spnsrvnt.exe
C:\Program Files\MusicMatch\MusicMatch Jukebox\mmtask.exe
C:\WINNT\System32\svchost.exe
C:\Program Files\Logitech\iTouch\iTouch.exe
C:\PROGRA~1\Logitech\MOUSEW~1\SYSTEM\EM_EXEC.EXE
C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mm_tray.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\Program Files\HP\HP Software Update\HPWuSchd.exe
C:\Program Files\HP\hpcoretech\hpcmpmgr.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program Files\Java\jre1.5.0_09\bin\jusched.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
C:\WINNT\iau1.exe
C:\WINNT\stisvsq1.exe
C:\WINNT\svshost1.exe
C:\WINNT\msqdevl1.exe
C:\WINNT\lssas1.exe
C:\WINNT\mservice1.exe
C:\Program Files\Messenger\msmsgs.exe
C:\PROGRA~1\PANICW~1\POP-UP~1\PSFree.exe
C:\Program Files\HP\Digital Imaging\bin\hpqtra08.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\HijackThis\HijackThis.exe

O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_09\bin\ssv.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\System32\msdxm.ocx
O4 - HKLM\..\Run: [IgfxTray] C:\WINNT\System32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINNT\System32\hkcmd.exe
O4 - HKLM\..\Run: [mmtask] c:\Program Files\MusicMatch\MusicMatch Jukebox\mmtask.exe
O4 - HKLM\..\Run: [NeroCheck] C:\WINNT\System32\NeroCheck.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [zBrowser Launcher] C:\Program Files\Logitech\iTouch\iTouch.exe
O4 - HKLM\..\Run: [EM_EXEC] C:\PROGRA~1\Logitech\MOUSEW~1\SYSTEM\EM_EXEC.EXE
O4 - HKLM\..\Run: [MMTray] C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mm_tray.exe
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe /Consumer
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [HP Software Update] "C:\Program Files\HP\HP Software Update\HPWuSchd.exe"
O4 - HKLM\..\Run: [HP Component Manager] "C:\Program Files\HP\hpcoretech\hpcmpmgr.exe"
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.5.0_09\bin\jusched.exe"
O4 - HKLM\..\Run: [AVG7_EMC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
O4 - HKLM\..\Run: [Microsoft Office Quick Launcher] iau1.exe
O4 - HKLM\..\Run: [Internet Connection Wizard] stisvsq1.exe
O4 - HKLM\..\Run: [Games Acceleration] svshost1.exe
O4 - HKLM\..\Run: [Internet Mail and News] msqdevl1.exe
O4 - HKLM\..\Run: [Microsoft Management Console] lssas1.exe
O4 - HKLM\..\Run: [Multimedia extensions] mservice1.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [PopUpStopperFreeEdition] "C:\PROGRA~1\PANICW~1\POP-UP~1\PSFree.exe"
O4 - HKCU\..\Run: [updateMgr] "C:\Program Files\Adobe\Acrobat 7.0\Reader\AdobeUpdateManager.exe" AcRdB7_0_7 -reboot 1
O4 - HKCU\..\Run: [Internet Connection Wizard] stisvsq1.exe
O4 - HKCU\..\Run: [Games Acceleration] svshost1.exe
O4 - HKCU\..\Run: [Internet Mail and News] msqdevl1.exe
O4 - HKCU\..\Run: [Microsoft Management Console] lssas1.exe
O4 - HKCU\..\Run: [Multimedia extensions] mservice1.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: HP Digital Imaging Monitor.lnk = C:\Program Files\HP\Digital Imaging\bin\hpqtra08.exe
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_09\bin\npjpi150_09.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_09\bin\npjpi150_09.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O12 - Plugin for .mpeg: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin4.dll
O16 - DPF: {1F2F4C9E-6F09-47BC-970D-3C54734667FE} (LSSupCtl Class) - https://www-secure.symantec.com/techsupp/asa/LSSupCtl.cab
O16 - DPF: {CE28D5D2-60CF-4C7D-9FE8-0F47A3308078} (ActiveDataInfo Class) - https://www-secure.symantec.com/techsupp/asa/SymAData.cab
O21 - SSODL: IEFilter - {2EC5F1ED-75D7-487B-9F9B-842CADC539F6} - C:\WINNT\system32\IEFilter.dll (file missing)
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: ewido security suite control - ewido networks - C:\Program Files\ewido\security suite\ewidoctrl.exe
O23 - Service: Norton AntiVirus Auto Protect Service (navapsvc) - Symantec Corporation - c:\Program Files\Norton AntiVirus\navapsvc.exe
O23 - Service: Intel NCS NetService (NetSvc) - Intel® Corporation - C:\Program Files\Intel\NCS\Sync\NetSvc.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINNT\System32\HPZipm12.exe
O23 - Service: SentinelProtectionServer - SafeNet, Inc - C:\Program Files\Common Files\SafeNet Sentinel\Sentinel Protection Server\WinNT\spnsrvnt.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe