I recently got a new to me used computer. It does have more memory than my old computer and allows me to upgrade to windows 2000 but it frequently freezes when ever the screen saver is activated. It doesn't seem to matter which power save options I use or disable. A friend when into the CMOS and turned off all power save otions from there to let windows handle it and it only seemed to make it worse. It does not do this when I am using the computer though. It also spontaneously restarts by itself when I am not using the computer. It works fine when in use but I am frustrated because I like to leave my computer on so that I can just pop in to quickly look up a bit of information. I don't want to have to reboot all the time.

I read that this could be indicative of a virus so I am submitting my log. Could someone please look at it and make suggestions. Any othere suggestions would be appreciated as well. I have already updated and ran Spybot and Adaware.
Help!
hLogfile of HijackThis v1.99.1
Scan saved at 12:40:38 PM, on 29/04/2006
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
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\spoolsv.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
C:\Program Files\Common Files\Command Software\dvpapi.exe
C:\WINNT\System32\svchost.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\system32\ZoneLabs\vsmon.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\Explorer.EXE
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\atiptaxx.exe
C:\WINNT\Mixer.exe
C:\Program Files\PCI Audio Applications\Bin\EchoCtrl.exe
C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\Program Files\Zero Knowledge\Freedom\Freedom.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\WINNT\system32\taskmgr.exe
C:\WINNT\explorer.exe
C:\Program Files\hijack this\hijackthis[1].exe
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
http://www.google.ca/
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Freedom Popup Killer - {3C060EA2-E6A9-4E49-A530-D4657B8C449A} - C:\Program Files\Zero Knowledge\Freedom\pkR.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Freedom BHO - {56071E0D-C61B-11D3-B41C-00E02927A304} - C:\Program Files\Zero Knowledge\Freedom\FreeBHOR.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\system32\msdxm.ocx
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [AtiPTA] atiptaxx.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [C-Media Mixer] Mixer.exe /startup
O4 - HKLM\..\Run: [C-Media Echo Control] C:\Program Files\PCI Audio Applications\Bin\EchoCtrl.exe
O4 - HKLM\..\Run: [Zone Labs Client] C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU\..\Run: [Freedom] C:\Program Files\Zero Knowledge\Freedom\Freedom.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) -
http://update.microsoft.com/windowsu...?1142223618090
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) -
http://update.microsoft.com/microsof...?1142226242027
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) -
https://download.macromedia.com/pub/...sh/swflash.cab
O16 - DPF: {DF780F87-FF2B-4DF8-92D0-73DB16A1543A} (PopCapLoader Object) -
http://www.popcap.com/games/popcaploader_v6.cab
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINNT\system32\Ati2evxx.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: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
O23 - Service: Logical Disk Manager Administrative Service (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: DvpApi (dvpapi) - Command Software Systems, Inc. - C:\Program Files\Common Files\Command Software\dvpapi.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINNT\system32\ZoneLabs\vsmon.exe