PC freezes when connected to internet

[applebean]

i dun really know why at first when i start up the pc....then after awhile it automatically freeze after abt 1min.

so i reformated the pc, but then after reformated the pc still freezes when im connected to the internet.(deleted old partition,created new 1) when i unplug the modem cable, it works find but when i plug it back it freezes after abt 20 sec.

i have tried looking for solution in the forum...theres a tread http://www.daniweb.com/forums/thread165724.html# that asked to update the malware detector program but when i connect to internet it jus freezes cant even update..or do anything.

please advice. thx

[applebean]

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 11:47:33 AM, on 8/6/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\wscntfy.exe
C:\Program Files\Malwarebytes' Anti-Malware\mbam.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
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\..\RunOnce: [Malwarebytes' Anti-Malware] C:\Program Files\Malwarebytes' Anti-Malware\mbamgui.exe /install /silent
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
O17 - HKLM\System\CCS\Services\Tcpip\..\{C04B3925-76BB-47EF-BA4F-D8CC1DAAE345}: NameServer = 192.168.1.1

--
End of file - 1394 bytes

i did a log file with Hijackthis

[Rik_]

You have no antivirus software. Get Avast from HERE and do a full scan with it.

[Suspishio]

What computer port does the modem cable go into?

USB? Ethernet?

If USB there could be a BIOS fix you need to do or a driver update.