Another Windows XP Problem

Hi! I was hoping I could get some help. Nowadays, it seems like every time I double click to open a folder or any other system window (Control Panel, etc.), it gives me an error. This error says:

"The server name or address could not be resolved."

This message box's title is the file path to explorer.exe, one of the system programs. After running Virusscan, Ad-aware, and Spybot, it doesn't seem like anything has improved. I figure this might be easier if I include my hijackthis log:

Logfile of HijackThis v1.97.7
Scan saved at 12:10:59 AM, on 3/19/2005
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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\DVDRAMSV.exe
c:\PROGRA~1\mcafee.com\vso\mcvsrte.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\BCMSMMSG.exe
C:\WINDOWS\system32\dla\tfswctrl.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\PROGRA~1\mcafee.com\agent\mcagent.exe
C:\PROGRA~1\mcafee.com\vso\mcvsshld.exe
C:\Program Files\Common Files\Dell\EUSW\Support.exe
C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mmtask.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\Viewpoint\Viewpoint Manager\ViewMgr.exe
C:\Program Files\AIM\aim.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\SYSTEM32\RAMASST.exe
C:\Program Files\Dell\Support\Alert\bin\NotifyAlert.exe
c:\PROGRA~1\mcafee.com\vso\mcshield.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Documents and Settings\Jon\My Documents\hijackthis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.dellnet.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.centralva.net
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer provided by Centralva.net
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: Mplay - {3ED8ACD1-583F-4ECE-B46F-FC4FA189E184} - C:\WINDOWS\System32\kbd20ka.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: (no name) - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\system32\dla\tfswshx.dll
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [BCMSMMSG] BCMSMMSG.exe
O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [VSOCheckTask] "c:\PROGRA~1\mcafee.com\vso\mcmnhdlr.exe" /checktask
O4 - HKLM\..\Run: [MCAgentExe] c:\PROGRA~1\mcafee.com\agent\mcagent.exe
O4 - HKLM\..\Run: [MCUpdateExe] C:\PROGRA~1\mcafee.com\agent\McUpdate.exe
O4 - HKLM\..\Run: [VirusScan Online] "c:\PROGRA~1\mcafee.com\vso\mcvsshld.exe"
O4 - HKLM\..\Run: [DwlClient] C:\Program Files\Common Files\Dell\EUSW\Support.exe
O4 - HKLM\..\Run: [UpdateManager] "C:\Program Files\Common Files\Sonic\Update Manager\sgtray.exe" /r
O4 - HKLM\..\Run: [mmtask] C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mmtask.exe
O4 - HKLM\..\Run: [alchem] C:\WINDOWS\alchem.exe
O4 - HKLM\..\Run: [iTunesHelper] C:\Program Files\iTunes\iTunesHelper.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [WildTangent CDA] RUNDLL32.exe "C:\Program Files\WildTangent\Apps\CDA\cdaEngine0400.dll",cdaEngineMain
O4 - HKLM\..\Run: [ViewMgr] C:\Program Files\Viewpoint\Viewpoint Manager\ViewMgr.exe
O4 - HKCU\..\Run: [AIM] C:\Program Files\AIM\aim.exe -cnetwait.odl
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Startup: PowerReg Scheduler V3.exe
O4 - Global Startup: RAMASST.lnk = C:\WINDOWS\SYSTEM32\RAMASST.exe
O9 - Extra 'Tools' menuitem: Sun Java Console (HKLM)
O9 - Extra button: AIM (HKLM)
O9 - Extra button: Real.com (HKLM)
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: Windows Messenger (HKLM)
O14 - IERESET.INF: START_PAGE_URL=http://www.centralva.net
O16 - DPF: {1239CC52-59EF-4DFA-8C61-90FFA846DF7E} (Musicnotes Viewer) - http://www.musicnotes.com/download/mnviewer.cab
O16 - DPF: {166B1BCA-3F9C-11CF-8075-444553540000} (Shockwave ActiveX Control) - http://download.macromedia.com/pub/shockwave/cabs/director/sw.cab
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537/2004033001/housecall.antivirus.com/housecall/xscan53.cab
O16 - DPF: {97154128-DC4C-4D5B-AF7C-CA7356238EC9} (Hanmail FileUpload Control) - http://wwl488.daum.net/hanmail-ax/HM_fileupload.cab
O16 - DPF: {A8F2B9BD-A6A0-486A-9744-18920D898429} (ScorchPlugin Class) - http://www.sibelius.com/download/software/win/ActiveXPlugin.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://zone.msn.com/binFramework/v10/ZIntro.cab32846.cab
O16 - DPF: {BCC0FF27-31D9-4614-A68E-C18E1ADA4389} (DwnldGroupMgr Class) - http://bin.mcafee.com/molbin/shared/mcgdmgr/en-us/1,0,0,15/mcgdmgr.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
O16 - DPF: {D5D4E25D-544D-4E31-9C84-C97EED5F6900} (HMPaintingMailAX Class) - http://wwl488.daum.net/hanmail-ax/HM_paintmail.cab
O16 - DPF: {E5D419D6-A846-4514-9FAD-97E826C84822} (HeartbeatCtl Class) - http://fdl.msn.com/zone/datafiles/heartbeat.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{05B30522-7935-4C92-91F0-B8C7F5E7F3F6}: NameServer = 64.203.136.14 64.203.136.13
O17 - HKLM\System\CS1\Services\Tcpip\..\{05B30522-7935-4C92-91F0-B8C7F5E7F3F6}: NameServer = 64.203.136.14 64.203.136.13

Thank you very much!