For the past week I have been experiencing freezing on my desktop and I'm a little concerned I may have a virus of some sort.  Whenever I open a movie folder, or any folder with 'thumbnails' of movies in it, the desktop immediately freezes up and I'm forced to CTRL-ALT-DEL and free things up. If the folders view is set to view as 'details' then I do not experience freezing. However, if I try and open a folder which previously is set to 'thumbnails' view(shows a preview screenshot of the movie), it freezes immediately before I get a chance to change it's view setting.  I have also have been getting this error while playing movies the past week causing freezes:  Drwatson Postmortem Debugger has encountered a problem and needs to close..

I've googled 'Dr.Watson errors' and I guess numerous things can cause this problem to occur?  I don't know where to begin. It seems most of the freezing happens when dealing with movies and thumbnailed folders. Please tell me which scans I should run, and other info to help solve this annoying problem  I'm experiencing.
Hijack results:

Logfile of HijackThis v1.99.1
Scan saved at 2:43:51 PM, on 7/23/2006
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:\Program Files\Sygate\SPF\smc.exe
C:\Program Files\Cliprex_WhenUSave_Installer\Cliprex_WhenUSave_Installer.exe
C:\Program Files\JAVA\jre1.5.0_06\bin\jusched.exe
C:\Program Files\Logitech\MouseWare\system\em_exec.exe
C:\Program Files\Executive Software\Diskeeper\DkService.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\PROGRA~1\MOZILL~1\FIREFOX.EXE
C:\WINDOWS\system32\drwtsn32.exe
C:\WINDOWS\system32\drwtsn32.exe
C:\WINDOWS\explorer.exe
C:\Hijackthis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = :0
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Adobereader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Spybot - Search & DESTROY\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [Logitech Utility] Logi_MwX.Exe
O4 - HKLM\..\Run: [SmcService] C:\PROGRA~1\Sygate\SPF\smc.exe -startgui
O4 - HKLM\..\Run: [LtcyCfgApply] "C:\PCI Latency\LtcyCfg.exe" /a
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [DiskeeperSystray] "C:\Program Files\Executive Software\Diskeeper\DkIcon.exe"
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [Cliprex_WhenUSave_Installer] C:\Program Files\Cliprex_WhenUSave_Installer\Cliprex_WhenUSave_Installer.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0_06\bin\jusched.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Adobereader\Reader\reader_sl.exe
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file missing)
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 - {85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file missing)
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://download.bitdefender.com/resources/scan8/oscan8.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1119576306265
O23 - Service: Diskeeper - Executive Software International, Inc. - C:\Program Files\Executive Software\Diskeeper\DkService.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Sygate Personal Firewall (SmcService) - Sygate Technologies, Inc. - C:\Program Files\Sygate\SPF\smc.exe

BitDefend Results:

 Status
C:\Documents and Settings\Master\Local Settings\Temp\NNCLXA638.EXE
      Detected with: Application.Adware.NewDotNet.B.Dropper
C:\Documents and Settings\Master\Local Settings\Temp\NNCLXA638.EXE
      Deleted
D:\Apps\BSINSTALL.exe=>wise0025=>(CAB Sfx r)
      Infected with: Trojan.Whenu.A
D:\Apps\BSINSTALL.exe=>wise0025=>(CAB Sfx r)
      Disinfection failed
D:\Apps\BSINSTALL.exe=>wise0025=>(CAB Sfx r)
      Deleted
D:\Apps\BSINSTALL.exe=>wise0025
      Update failed
D:\Apps\BSINSTALL.exe=>wise0025=>(CAB Sfx r)
      Infected with: Trojan.Whenu.C
D:\Apps\BSINSTALL.exe=>wise0025=>(CAB Sfx r)
      Disinfection failed
D:\Apps\BSINSTALL.exe=>wise0025=>(CAB Sfx r)
      Deleted
D:\Apps\BSINSTALL.exe=>wise0025
      Update failed

Please Help!Okay. This is why you need good virus protection. . .(such as McAfee or Norton Antivirus for Windows)

And Spyware protection (I recommend SpyBot Search and Destroy)

And Adware protection (such as AdAware)

get those things, run them, and see if you still have the problem.

--squirrel If you only Experience the Problem when Viewing the Thumbnails of Videos , then don't Worry, it a common XP Error, it happens when XP poles a Preview and finds the Codex Don't wana Play nice

I would just Turn off ThumbnailsSince you are Having Problems with Video , a good player is VLC
if you would prefer to try and fix the Codex Problem , Get the Kazaa Lite Mega CODEC Pack.

As for Anti Virus, Don't use Norton, Try AVG Free, and Also for Mal ware Try Ewido, And for AD Ware , try Ad-Aware.

You have some adware installed right now , Called When U Save, its not the Worst tho, it only dose what it supposed to , and that is show you Add's because perhaps you have a program thats making its cash trough those add's. either way , adware or Ewido will remove itAVG?    AVG doesn't catch a lot of things. I prefer McAfee VirusScan.  SpyBot is good for spyware.Yes, I agree with panboy, it is just a Windows XP problem with thumbnails. You can fix this by downloading every codec possible (or at least for all the movies in the folders) or get a media player that can play almost anything.

Once again I agree with Panboy, VLC is one of my favorites.
AVG might not be the Best , but its the Best Free one ^.^,

i don't Like Norton, McAfee is Pretty Good, but it costs moneys.

I would have Recommended Spy Bot , But you already had , no need to Repeat people. i use Ad-aware , Spy bot Ewidow and AVG, but i wouldn't Touch NortonWow, thanks alot guys!    I'll download some of these and see if I can't try and fix it.

As far as turning thumbnailed views off, How do you change universal folder settings to change ALL folders view to detailed?  I can only do them one by one, and under Folder options > view I don't see an option  to change ALL folders view.This is all youneed for codecs:

http://www.theorica.net/codecs.htm

Pick the appropriate one for your purposes!Awesome That worked    Thanks for the help guys