i've the same problem and done the hijackthis ...
this is my result ,please help me

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Logfile of HijackThis v1.99.1
Scan saved at 7:12:12 PM, on 10/16/2005
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)
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:\PROGRAM FILES\AVPERSONAL\AVGUARD.EXE
C:\Program Files\AVPersonal\AVWUPSRV.EXE
C:\Program Files\Analog Devices\SoundMAX\SMAgent.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Program Files\BIPAC-7000 ADSL USB Modem\CnxDslTb.exe
C:\Program Files\AVPersonal\AVGNT.EXE
C:\Program Files\MessengerPlus! 3\MsgPlus.exe
C:\Program Files\K-Lite Codec Pack\Real\Update_OB\realsched.exe
C:\WINDOWS\System32\ctfmon.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\HijackThis\HijackThis.exe
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page =
http://www.microsoft.com/isapi/redir.dll?prd=ie&ar=iesearchR0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
http://www.google.co.th/R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL =
http://www.microsoft.com/isapi/redir.dll?p...er=6&ar=msnhomeR1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL =
http://www.microsoft.com/isapi/redir.dll?prd=ie&ar=iesearchR1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page =
http://www.microsoft.com/isapi/redir.dll?prd=ie&ar=iesearchR0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page =
http://www.microsoft.com/isapi/redir.dll?p...B_PVER}&ar=homeR0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
http://www.google.com/ieR1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext =
http://www.microsoft.com/isapi/redir.dll?p...er=6&ar=msnhomeO2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: NTIECatcher Class - {C56CB6B0-0D96-11D6-8C65-B2868B609932} - C:\Program Files\Xi\NetTransport 2\NTIEHelper.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [ATIPTA] "C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe"
O4 - HKLM\..\Run: [CnxDslTaskBar] "C:\Program Files\BIPAC-7000 ADSL USB Modem\CnxDslTb.exe"
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [MSPY2002] C:\WINDOWS\System32\IME\PINTLGNT\ImScInst.exe /SYNC
O4 - HKLM\..\Run: [PHIME2002ASync] C:\WINDOWS\System32\IME\TINTLGNT\TINTSETP.EXE /SYNC
O4 - HKLM\..\Run: [PHIME2002A] C:\WINDOWS\System32\IME\TINTLGNT\TINTSETP.EXE /IMEName
O4 - HKLM\..\Run: [AVGCtrl] "C:\Program Files\AVPersonal\AVGNT.EXE" /min
O4 - HKLM\..\Run: [MessengerPlus3] "C:\Program Files\MessengerPlus! 3\MsgPlus.exe"
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\K-Lite Codec Pack\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [FinePrint Dispatcher v5] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\fpdisp5a.exe
O4 - HKLM\..\Run: [DataLayer] C:\PROGRA~1\COMMON~1\PCSuite\DATALA~1\DATALA~1.EXE
O4 - HKLM\..\Run: [PCSuiteTrayApplication] C:\PROGRA~1\Nokia\NOKIAP~1\TRAYAP~1.EXE
O4 - HKLM\..\Run: [MSConfig] C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O16 - DPF: {072039AB-2117-4ED5-A85F-9B9EB903E021} (NowStarter Control) -
http://www.clubbox.co.kr/neo.fld/NowStarter.cabO17 - HKLM\System\CCS\Services\Tcpip\..\{C5868A36-D902-45D9-A484-BD3A1CEF6ABC}: NameServer = 203.144.207.49 203.144.207.29
O23 - Service: AntiVir Service (AntiVirService) - H+BEDV Datentechnik GmbH - C:\PROGRAM FILES\AVPERSONAL\AVGUARD.EXE
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: AntiVir Update (AVWUpSrv) - H+BEDV Datentechnik GmbH, Germany - C:\Program Files\AVPersonal\AVWUPSRV.EXE
O23 - Service: OracleOraDb10g_home1TNSListener - Unknown owner - C:\oracle\product\10.1.0\Db_1\BIN\TNSLSNR.exe (file missing)
O23 - Service: SoundMAX Agent Service (SoundMAX Agent Service (default)) - Analog Devices, Inc. - C:\Program Files\Analog Devices\SoundMAX\SMAgent.exe
thanks very much.