My problem is that whenever I try to run MSCONFIG, it says "operation has been cancelled due to restrictions in this computer, please see system administrator", however, I am the system administrator and the only user of this computer. Any suggestions would be greatly appreciated, I have attached the hijackthis log:

Logfile of HijackThis v1.97.7
Scan saved at 9:38:32 AM, on 5/7/2004
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\System32\gearsec.exe
C:\Program Files\Common Files\Microsoft Shared\VS7Debug\mdm.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\TBPanel.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mm_tray.exe
C:\WINDOWS\System32\wininit32.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\QuickTime\qttask.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\WINDOWS\System32\CMMON32.EXE
C:\Program Files\Trillian\trillian.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\HJT\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.hotmail.com/
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [Gainward] C:\WINDOWS\TBPanel.exe /A
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [MMTray] C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mm_tray.exe
O4 - HKLM\..\Run: [Winexec] C:\WINDOWS\Winexec.exe
O4 - HKLM\..\Run: [RDLL] RunDll16.exe
O4 - HKLM\..\Run: [SysInit] wininit32.exe -drivers
O4 - HKLM\..\Run: [AutoLoaderAproposClient] "C:\DOCUME~1\OPTIMU~1\APPLIC~1\apropos.exe" C:\DOCUME~1\OPTIMU~1\APPLIC~1\apropos.exe /HideUninstIcon /HideDir /UninstallName="Software Apropos" /PC=PLUS
O4 - HKLM\..\Run: [iTunesHelper] C:\Program Files\iTunes\iTunesHelper.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\RunServices: [RDLL] RunDll16.exe
O4 - HKLM\..\RunServices: [SysInit] wininit32.exe -drivers
O4 - HKCU\..\Run: [SysInit] wininit32.exe -drivers
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~4\Office10\EXCEL.EXE/3000
O9 - Extra button: AIM (HKLM)
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: {9F1C11AA-197B-4942-BA54-47A8489BB47F} (Update Class) - http://v4.windowsupdate.microsoft.com/CAB/x86/unicode/iuctl.CAB?38113.2699768519
O16 - DPF: {A8658086-E6AC-4957-BC8E-7D54A7E8A78E} (SassCln Object) - http://www.microsoft.com/security/controls/SassCln.CAB
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
O16 - DPF: {F04A8AE2-A59D-11D2-8792-00C04F8EF29D} (Hotmail Attachments Control) - http://lw12fd.law12.hotmail.msn.com/activex/HMAtchmt.ocx
O17 - HKLM\System\CCS\Services\Tcpip\..\{4BB29A78-1D0D-4044-AD20-0AABE76BFB47}: NameServer = 216.194.28.33 216.194.28.69