Computer Randomly Reboots

[ltapps]

Hey, my computer running on ME has for a long time rebooted at random times.Or it freezes. I was wondering why this happens?
windows ME
316mb ram
intergrated chipset
866 mhz
7gb hd




Logfile of HijackThis v1.97.2
Scan saved at 5:44:55 PM, on 9/19/2003
Platform: Windows ME (Win9x 4.90.3000)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\SPOOL32.EXE
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\PROGRAM FILES\NORTON INTERNET SECURITY\NISSERV.EXE
C:\PROGRAM FILES\EXECUTIVE SOFTWARE\DISKEEPERLITE\DKSERVICE.EXE
C:\WINDOWS\SYSTEM\LEXBCES.EXE
C:\WINDOWS\SYSTEM\RPCSS.EXE
C:\PROGRAM FILES\NORTON INTERNET SECURITY\NISUM.EXE
C:\PROGRAM FILES\NORTON INTERNET SECURITY\SYMPROXYSVC.EXE
C:\WINDOWS\SYSTEM\LEXPPS.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\SYSTEM\RESTORE\STMGR.EXE
C:\WINDOWS\TASKMON.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\WINDOWS\LOADQM.EXE
C:\WINDOWS\SYSTEM\ICSMGR.EXE
C:\WINDOWS\SYSTEM\WMIEXE.EXE
C:\PROGRAM FILES\NORTON INTERNET SECURITY\IAMAPP.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
C:\PROGRAM FILES\NORTON ANTIVIRUS\NAVAPW32.EXE
C:\WINDOWS\SYSTEM\PRINTRAY.EXE
C:\PROGRAM FILES\INTERNET EXPLORER\IEXPLORE.EXE
C:\PROGRAM FILES\ALWIL SOFTWARE\AVAST4\ASHMAISV.EXE
C:\PROGRAM FILES\ALWIL SOFTWARE\AVAST4\ASHSIMPL.EXE
C:\PROGRAM FILES\MSN MESSENGER\MSNMSGR.EXE
C:\WINDOWS\DESKTOP\HIJACKTHIS.EXE

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com/
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\PROGRAM FILES\ADOBE\ACROBAT 6.0\READER\ACTIVEX\ACROIEHELPER.DLL
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
O4 - HKLM\..\Run: [ScanRegistry] C:\WINDOWS\scanregw.exe /autorun
O4 - HKLM\..\Run: [TaskMonitor] C:\WINDOWS\taskmon.exe
O4 - HKLM\..\Run: [PCHealth] C:\WINDOWS\PCHealth\Support\PCHSchd.exe -s
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\Run: [LoadQM] loadqm.exe
O4 - HKLM\..\Run: [ICSMGR] ICSMGR.EXE
O4 - HKLM\..\Run: [iamapp] C:\Program Files\Norton Internet Security\IAMAPP.EXE
O4 - HKLM\..\Run: [NAV Agent] C:\PROGRA~1\NORTON~1\NAVAPW32.EXE
O4 - HKLM\..\Run: [LexStart] Lexstart.exe
O4 - HKLM\..\Run: [LexmarkPrinTray] PrinTray.exe
O4 - HKLM\..\Run: [ashMaiSv] C:\PROGRA~1\ALWILS~1\AVAST4\ashmaisv.exe
O4 - HKLM\..\Run: [MSConfigReminder] C:\WINDOWS\SYSTEM\msconfig.exe /reminder
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [SchedulingAgent] mstask.exe
O4 - HKLM\..\RunServices: [*StateMgr] C:\WINDOWS\System\Restore\StateMgr.exe
O4 - HKLM\..\RunServices: [ScriptBlocking] "C:\Program Files\Common Files\Symantec Shared\Script Blocking\SBServ.exe" -reg
O4 - HKLM\..\RunServices: [nisserv] C:\Program Files\Norton Internet Security\NISSERV.EXE
O4 - HKLM\..\RunServices: [avast!] C:\Program Files\Alwil Software\Avast4\ashserv.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: MSN Messenger Service (HKLM)
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/s...sh/swflash.cab
O16 - DPF: {0E5F0222-96B9-11D3-8997-00104BD12D94} (PCPitstop Utility) - http://www.pcpitstop.com/pcpitstop/PCPitStop.CAB
O16 - DPF: {9F1C11AA-197B-4942-BA54-47A8489BB47F} (Update Class) - http://v4.windowsupdate.microsoft.co...729.5367476852
O16 - DPF: {6FB9FE59-7D3B-483D-9909-C870BE5AFA1F} (DiskHealth Class) - http://pcpitstop.com/pcpitstop/diskhealth.cab
O16 - DPF: {1842B0EE-B597-11D4-8997-00104BD12D94} (iCC Class) - http://pcpitstop.com/internet/pcpConnCheck.cab

[dragonsix]

Please check if your system resources below 30%.

http://www.aumha.org/win4/a/resource.htm