Autoplay keeps running intermittently

Also a process appears to be running in the background; every second, I can hear my hard drive and see the HD light indicating activity as well as my pointer blinking busy. 

 

Here is my log:

 

Logfile of Trend Micro HijackThis v2.0.0 (BETA)
Scan saved at 8:40:06 PM, on 6/24/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
Boot mode: Normal

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:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe
C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\Program Files\Norton AntiVirus\AdvTools\NPROTECT.EXE
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\Norton AntiVirus\SAVScan.exe
C:\WINDOWS\System32\PAStiSvc.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\RTHDCPL.EXE
C:\WINDOWS\emMON.exe
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\PROGRA~1\MYWEBS~1\bar\1.bin\mwsoemon.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
C:\Program Files\MySpace\IM\MySpaceIM.exe
C:\WINDOWS\system32\wuauclt.exe
c:\windows\system\hpsysdrv.exe
C:\Program Files\Java\jre1.5.0_05\bin\jusched.exe
C:\Program Files\Yahoo!\Messenger\YahooMessenger.exe
C:\WINDOWS\explorer.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Hijack This_v2\HiJackThis_v2.exe
C:\Program Files\Messenger\msmsgs.exe

O23 - Service: Norton AntiVirus Auto Protect Service (navapsvc) - Symantec Corporation - C:\Program Files\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton Unerase Protection (NProtectService) - Symantec Corporation - C:\Program Files\Norton AntiVirus\AdvTools\NPROTECT.EXE
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: SAVScan - Symantec Corporation - C:\Program Files\Norton AntiVirus\SAVScan.exe
O23 - Service: ScriptBlocking Service (SBService) - Symantec Corporation - C:\PROGRA~1\COMMON~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: STI Simulator - Unknown owner - C:\WINDOWS\System32\PAStiSvc.exe
O23 - Service: Symantec Core LC - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe

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