For a few weeks now I've been experiencing some very annoying pop-up ads, mostly titled "Powered by Zedo". Sometimes an annoying web page will open which looks like a news website as well. I've run antivirus programs and spyware blockers, to no avail. Below is a current HJT log. Any help is greatly appreciated! Thanks, Steve

Logfile of HijackThis v1.99.1
Scan saved at 6:55:03 AM, on 8/20/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
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:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\slserv.exe
C:\WINDOWS\System32\snmp.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\WFXSVC.EXE
C:\Program Files\Symantec\WinFax\WFXMOD32.EXE
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\Program Files\Microsoft IntelliPoint\point32.exe
C:\Program Files\ATI Technologies\ATI.ACE\cli.exe
C:\Program Files\ATI Multimedia\MAIN\ATISched.EXE
C:\Program Files\ATI Multimedia\main\ATIDtct.EXE
C:\Program Files\ATI Multimedia\RemCtrl\ATIRW.exe
C:\Program Files\ATI Technologies\ATI.ACE\CLI.exe
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\system32\wscntfy.exe
C:\PROGRA~1\COMMON~1\MICROS~1\Msinfo\OFFPROV.EXE
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\HijackThis\HijackThis.exe
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {55431DD1-8795-4AF3-8FA0-D645DF7910D4} - C:\WINDOWS\system32\werweb.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O2 - BHO: (no name) - {E41F6CED-50CD-47E8-AC4D-78535E3A2B86} - C:\WINDOWS\shwol.dll (file missing)
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [OneTouch Monitor] C:\Program Files\Visioneer OneTouch\OneTouchMon.exe
O4 - HKLM\..\Run: [Jet Detection] "C:\Program Files\Creative\SBLive\PROGRAM\ADGJDet.exe"
O4 - HKLM\..\Run: [IntelliPoint] "C:\Program Files\Microsoft IntelliPoint\point32.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [ATICCC] "C:\Program Files\ATI Technologies\ATI.ACE\cli.exe" runtime
O4 - HKCU\..\Run: [ATI Scheduler] C:\Program Files\ATI Multimedia\MAIN\ATISched.EXE
O4 - HKCU\..\Run: [ATI DeviceDetect] C:\Program Files\ATI Multimedia\main\ATIDtct.EXE
O4 - HKCU\..\Run: [ATI Remote Control] C:\Program Files\ATI Multimedia\RemCtrl\ATIRW.exe
O4 - Global Startup: ATI CATALYST System Tray.lnk = C:\Program Files\ATI Technologies\ATI.ACE\CLI.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
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: ATI TV - {44226DFF-747E-4edc-B30C-78752E50CD0C} - C:\Program Files\ATI Multimedia\tv\EXPLBAR.DLL
O9 - Extra button: ComcastHSI - {669B269B-0D4E-41FB-A3D8-FD67CA94F646} - http://www.comcast.net/ (file missing)
O9 - Extra button: Support - {8828075D-D097-4055-AA02-2DBFA9D85E8A} - http://www.comcastsupport.com/ (file missing)
O9 - Extra button: Help - {97809617-3937-4F84-B335-9BB05EF1A8D4} - http://online.comcast.net/help/ (file missing)
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
O16 - DPF: {6E5E167B-1566-4316-B27F-0DDAB3484CF7} (Image Uploader Control) - http://www.photogize.com/bponet/Phot...eUploader4.cab
O23 - Service: ASP.NET State Service (aspnet_state) - Unknown owner - C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_state.exe (file missing)
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
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: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: iPodService - Apple Computer, Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: SmartLinkService (SLService) - - C:\WINDOWS\SYSTEM32\slserv.exe
O23 - Service: WinFax PRO (wfxsvc) - Symantec Corporation - C:\WINDOWS\system32\WFXSVC.EXE
O23 - Service: X10 Device Network Service (x10nets) - Unknown owner - C:\PROGRA~1\ATIMUL~1\RemCtrl\x10nets.exe (file missing)