I did run Adaware, as someone suggested, but it didn't solve my problems (see post further down for full details). Here's my hijackthis log.
Logfile of HijackThis v1.97.7
Scan saved at 9:30:18 PM, on 3/22/04
Platform: Windows 98 Gold (Win9x 4.10.1998)
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\MPREXE.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\PROGRAM FILES\COMMON FILES\SYMANTEC SHARED\SYMTRAY.EXE
C:\PROGRAM FILES\COMMON FILES\SYMANTEC SHARED\CCEVTMGR.EXE
C:\PROGRAM FILES\COMMON FILES\SYMANTEC SHARED\CCSETMGR.EXE
C:\PROGRAM FILES\NORTON SYSTEMWORKS\NORTON UTILITIES\NPROTECT.EXE
C:\PROGRAM FILES\NORTON SYSTEMWORKS\NORTON CLEANSWEEP\CSINJECT.EXE
C:\PROGRAM FILES\NORTON SYSTEMWORKS\NORTON GOBACK\GBPOLL.EXE
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\RUNDLL32.EXE
C:\WINDOWS\TASKMON.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\WINDOWS\SYSTEM\ATICWD32.EXE
C:\WINDOWS\SYSTEM\ATITASK.EXE
C:\PROGRAM FILES\COMMON FILES\SYMANTEC SHARED\CCPD-LC\SYMLCSVC.EXE
C:\PROGRAM FILES\COMMON FILES\SYMANTEC SHARED\CCAPP.EXE
C:\PROGRAM FILES\NORTON SYSTEMWORKS\PASSWORD MANAGER\ACCTMGR.EXE
C:\WINDOWS\SYSTEM\HPZTSB02.EXE
C:\PROGRAM FILES\ACCELERATION SOFTWARE\ANTI-VIRUS\DEFSCANGUI.EXE
C:\WINDOWS\SYSTEM\SPOOL32.EXE
C:\PROGRAM FILES\COMMON FILES\EACCELERATION\EANTHOLOGY.EXE
C:\PROGRAM FILES\AIM\AIM.EXE
C:\PROGRAM FILES\MSWORKS\CALENDAR\WKCALREM.EXE
C:\PROGRAM FILES\NORTON SYSTEMWORKS\NORTON GOBACK\GBTRAY.EXE
C:\PROGRAM FILES\NORTON SYSTEMWORKS\NORTON CLEANSWEEP\CSINSM32.EXE
C:\PROGRAM FILES\SONY HANDHELD\HOTSYNC.EXE
C:\PROGRAM FILES\MICROSOFT OFFICE\OFFICE\OSA.EXE
C:\PROGRAM FILES\MICROSOFT OFFICE\OFFICE\FINDFAST.EXE
C:\PROGRAM FILES\NORTON SYSTEMWORKS\NORTON CLEANSWEEP\Monwow.exe
C:\STEVEN'S WORLD\OTHER GAMES\WINZIP\WZQKPICK.EXE
C:\WINDOWS\DESKTOP\HIJACKTHIS.EXE
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar =
http://pop.popuptoast.com/9901/search/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page =
http://search.2020search.com/9901/s...03258063&s=
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
http://www.newsday.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
http://www.searchant.com/sp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar =
http://www.searchant.com/sp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page =
http://search.2020search.com/9901/s...03258063&s=
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
http://pop.popuptoast.com/9901/search/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) =
http://www.searchant.com/r=6&s=%s
N3 - Netscape 7: user_pref("browser.startup.homepage", "http://www.newsday.com/news/nationworld/wire/"); (C:\WINDOWS\Application Data\Mozilla\Profiles\default\zpct2oal.slt\prefs.js)
N3 - Netscape 7: user_pref("browser.search.defaultengine", "engine://C%3A%5CPROGRAM%20FILES%5CNETSCAPE%5CNETSCAPE%5Csearchplugins%5CSBWeb_02.src"); (C:\WINDOWS\Application Data\Mozilla\Profiles\default\zpct2oal.slt\prefs.js)
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - c:\Program Files\Norton SystemWorks\Norton Antivirus\NavShExt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
O3 - Toolbar: 2020SEARCH2 - {4E7BD74F-2B8D-469E-92C6-CE7EB590A94D} - C:\WINDOWS\2020SEARCH2.DLL
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: My &Search Bar - {0494D0D9-F8E0-41ad-92A3-14154ECE70AC} - C:\PROGRAM FILES\MYWAY\MYBAR\2.BIN\MYBAR.DLL
O3 - Toolbar: (no name) - {57E69D5A-6539-4d7d-9637-775DE8A385B4} - (no file)
O4 - HKLM\..\Run: [ScanRegistry] c:\windows\scanregw.exe /autorun
O4 - HKLM\..\Run: [TaskMonitor] c:\windows\taskmon.exe
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\Run: [AtiCwd32] Aticwd32.exe
O4 - HKLM\..\Run: [AtiKey] Atitask.exe
O4 - HKLM\..\Run: [SoundFusion] RunDll32 cwcprops.cpl,CrystalControlWnd
O4 - HKLM\..\Run: [Symantec Core LC] C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe start
O4 - HKLM\..\Run: [ccApp] "c:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [NPROTECT] c:\Program Files\Norton SystemWorks\Norton Utilities\Nprotect.exe
O4 - HKLM\..\Run: [AcctMgr] c:\Program Files\Norton SystemWorks\Password Manager\AcctMgr.exe /startup
O4 - HKLM\..\Run: [HPDJ Taskbar Utility] C:\WINDOWS\SYSTEM\hpztsb02.exe
O4 - HKLM\..\Run: [WebScan] C:\PROGRAM FILES\ACCELERATION SOFTWARE\ANTI-VIRUS\DEFSCANGUI.EXE -k
O4 - HKLM\..\Run: [srng] \Program Files\Srng\Srng.exe
O4 - HKLM\..\Run: [EanthologyApp] C:\PROGRA~1\COMMON~1\EACCEL~1\EANTHO~1.EXE /b Startup
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [SchedulingAgent] mstask.exe
O4 - HKLM\..\RunServices: [SymTray - Norton SystemWorks] c:\Program Files\Common Files\Symantec Shared\SymTray.exe "Norton SystemWorks"
O4 - HKLM\..\RunServices: [ScriptBlocking] "C:\Program Files\Common Files\Symantec Shared\Script Blocking\SBServ.exe" -reg
O4 - HKLM\..\RunServices: [ccEvtMgr] "c:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe"
O4 - HKLM\..\RunServices: [ccSetMgr] "c:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe"
O4 - HKLM\..\RunServices: [NPROTECT] c:\Program Files\Norton SystemWorks\Norton Utilities\Nprotect.exe
O4 - HKLM\..\RunServices: [CSINJECT.EXE] c:\Program Files\Norton SystemWorks\Norton CleanSweep\csinject.exe
O4 - HKLM\..\RunServices: [GoBack Polling Service] c:\Program Files\Norton SystemWorks\Norton GoBack\GBPoll.exe
O4 - HKCU\..\Run: [AIM] C:\PROGRAM FILES\AIM\aim.exe -cnetwait.odl
O4 - Startup: Microsoft Works Calendar Reminders.lnk = C:\Program Files\MSWorks\Calendar\WKCALREM.EXE
O4 - Startup: Norton GoBack.lnk = C:\Program Files\Norton SystemWorks\Norton GoBack\GBTray.exe
O4 - Startup: CleanSweep Smart Sweep-Internet Sweep.lnk = C:\Program Files\Norton SystemWorks\Norton CleanSweep\csinsm32.exe
O4 - Startup: HotSync Manager.lnk = C:\Program Files\Sony Handheld\HOTSYNC.EXE
O4 - Startup: Office Startup.lnk = C:\Program Files\Microsoft Office\Office\OSA.EXE
O4 - Startup: Microsoft Find Fast.lnk = C:\Program Files\Microsoft Office\Office\FINDFAST.EXE
O4 - Startup: WinZip Quick Pick.lnk = C:\Steven's World\Other Games\WinZip\WZQKPICK.EXE
O4 - Global Startup: stamp.dat
O8 - Extra context menu item: &Google Search - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmsearch.html
O8 - Extra context menu item: Cac&hed Snapshot of Page - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmcache.html
O8 - Extra context menu item: Si&milar Pages - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmsimilar.html
O8 - Extra context menu item: Backward &Links - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmbacklinks.html
O8 - Extra context menu item: Translate into English - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmtrans.html
O9 - Extra button: Related (HKLM)
O9 - Extra 'Tools' menuitem: Show &Related Links (HKLM)
O9 - Extra 'Tools' menuitem: Sun Java Console (HKLM)
O9 - Extra button: AIM (HKLM)
O12 - Plugin for .spop: C:\PROGRA~1\INTERN~1\Plugins\NPDocBox.dll
O16 - DPF: {9F1C11AA-197B-4942-BA54-47A8489BB47F} (Update Class) -
http://v4.windowsupdate.microsoft.c...7933.4333912037
O16 - DPF: {C2FCEF52-ACE9-11D3-BEBD-00105AA9B6AE} (Symantec RuFSI Registry Information Class) -
http://security.symantec.com/sscv6/...n/bin/cabsa.cab
O16 - DPF: {0000000A-0000-0010-8000-00AA00389B71} -
http://download.microsoft.com/downl...0367/wmavax.CAB
O16 - DPF: {33564D57-0000-0010-8000-00AA00389B71} -
http://download.microsoft.com/downl...922/wmv9VCM.CAB
O16 - DPF: {166B1BCA-3F9C-11CF-8075-444553540000} (Shockwave ActiveX Control) -
http://download.macromedia.com/pub/...director/sw.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) -
http://download.macromedia.com/pub/...ash/swflash.cab
O16 - DPF: {70647AB5-18FD-4142-82B0-5852478DD0D4} (Vividence Connector Launcher) -
http://task.vividence.com/download/...torLauncher.cab
O16 - DPF: {0E5F0222-96B9-11D3-8997-00104BD12D94} (PCPitstop Utility) -
http://www.pcpitstop.com/pcpitstop/PCPitStop.CAB