Untill a week ago my pc was fine but now it won't access the internet and I have a problem with windows explorer bar. I have three networked pcs and they all recognize each other altough my pc can't access the others and the others can access it. I've tryed over and over the conection wizard with no solution so far... It first started with a few "disconnects" now and then, when I still had Norton Antivirus and Norton Firewall installed, later on my father uninstalled them because the signature ended and he bought Panda Platinum Internet Security. There were a few days wich we accessed the internet without any defensive program, and I started to have some problems with programs like Sharezaa wich seemed to "break" my connection, I uninstalled it... I played CS through STEAM without any problems though.
Two days ago Panda was installed and from then on I had no internet access, but the other two pcs (with win2000) had. I also have every now and then a problem with panda's firewall, could it be a compatibility issue? I can't uninstall Panda because my father has the program and the access codes, and he won't return till 26th August.

Here's my Hijackthis log, if it helps:

Logfile of HijackThis v1.97.7
Scan saved at 0:00:51, on 19-08-2004
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\SYSTEM32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\windows\system\hpsysdrv.exe
C:\Programas\HP\Digital Imaging\Unload\hpqcmon.exe
C:\WINDOWS\System32\hphmon05.exe
C:\Programas\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Programas\Multimedia Card Reader\shwicon2k.exe
C:\WINDOWS\ALCXMNTR.EXE
C:\Programas\Panda Software\Panda Platinum Internet Security\APVXDWIN.EXE
C:\WINDOWS\System32\rundll32.exe
C:\Programas\HP\Digital Imaging\bin\hpqtra08.exe
C:\Programas\Ficheiros comuns\Microsoft Shared\Works Shared\wkcalrem.exe
C:\WINDOWS\System32\cisvc.exe
C:\Programas\Ficheiros comuns\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Programas\Ficheiros comuns\Panda Software\PavShld\pavprsrv.exe
C:\Programas\Panda Software\Panda Platinum Internet Security\pavsrv51.exe
C:\WINDOWS\System32\snmp.exe
C:\Programas\Panda Software\Panda Platinum Internet Security\AVENGINE.EXE
C:\WINDOWS\System32\svchost.exe
C:\Programas\Panda Software\Panda Platinum Internet Security\WebProxy.exe
C:\Documents and Settings\Proprietário\Os meus documentos\Nova pasta\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://g.msn.com.br/0SEPTBR/SAOS01
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.pt/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page_bak = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Hiperligações
O2 - BHO: NavErrRedir Class - {00D6A7E7-4A97-456f-848A-3B75BF7554D7} - (no file)
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programas\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {ACB3E0B7-7D0C-40B7-99B3-3EEACDF86BFB} - C:\WINDOWS\mslagent\4b_1,0,1,1_mslagent.dll (file missing)
O3 - Toolbar: &Rádio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [hpsysdrv] c:\windows\system\hpsysdrv.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [CamMonitor] c:\Programas\HP\Digital Imaging\Unload\hpqcmon.exe
O4 - HKLM\..\Run: [HPHUPD05] c:\Programas\HP\{45B6180B-DCAB-4093-8EE8-6164457517F0}\hphupd05.exe
O4 - HKLM\..\Run: [HPHmon05] C:\WINDOWS\System32\hphmon05.exe
O4 - HKLM\..\Run: [Recguard] C:\WINDOWS\SMINST\RECGUARD.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /installquiet /keeploaded /nodetect
O4 - HKLM\..\Run: [VTTimer] VTTimer.exe
O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe
O4 - HKLM\..\Run: [PS2] C:\WINDOWS\system32\ps2.exe
O4 - HKLM\..\Run: [ATIPTA] C:\Programas\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [Sunkist2k] C:\Programas\Multimedia Card Reader\shwicon2k.exe
O4 - HKLM\..\Run: [AlcxMonitor] ALCXMNTR.EXE
O4 - HKLM\..\Run: [Windows SA] C:\Program Files\WindowsSA\omniscient.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programas\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [SCANINICIO] "C:\Programas\Panda Software\Panda Platinum Internet Security\Inicio.exe"
O4 - HKLM\..\Run: [APVXDWIN] "C:\Programas\Panda Software\Panda Platinum Internet Security\APVXDWIN.EXE" /s
O4 - HKCU\..\Run: [NVIEW] rundll32.exe nview.dll,nViewLoadHook
O4 - HKCU\..\Run: [BackupNotify] c:\Programas\HP\Digital Imaging\bin\backupnotify.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Programas\Ficheiros comuns\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: HP Digital Imaging Monitor.lnk = C:\Programas\HP\Digital Imaging\bin\hpqtra08.exe
O4 - Global Startup: Microsoft Works Calendar Reminders.lnk = ?
O8 - Extra context menu item: E&xportar para o Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Pesquisar (HKLM)
O9 - Extra button: Descargas (HKLM)
O9 - Extra button: Related (HKLM)
O9 - Extra 'Tools' menuitem: Show &Related Links (HKLM)
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: Messenger (HKLM)
O10 - Unknown file in Winsock LSP: c:\programas\panda software\panda platinum internet security\pavlsp.dll
O10 - Unknown file in Winsock LSP: c:\programas\panda software\panda platinum internet security\pavlsp.dll
O10 - Broken Internet access because of LSP provider 'xfire_lsp_7626.dll' missing
O16 - DPF: {02BF25D5-8C17-4B23-BC80-D3488ABDDC6B} (QuickTime Object) - http://www.apple.com/qtactivex/qtplugin.cab
O16 - DPF: {0594AF7E-573B-40DF-8165-E47AB2EAEFE8} - http://akamai.downloadv3.com/binaries/P2EClient/EGAUTH_1020_EN_XP.cab
O16 - DPF: {12E5E9D9-4366-45D9-BA41-D0BCD55AD8CF} (UDConnect Class) - http://17.sharedsource.org/html/NrsgroupUD_1.0.0.2ie.cab?
O16 - DPF: {469C7080-8EC8-43A6-AD97-45848113743C} - http://akamai.downloadv3.com/binaries/IA/nethv32_EN_XP.cab
O16 - DPF: {50AD557E-3426-41FD-AFDD-2AF39BB1C387} - http://akamai.downloadv3.com/binaries/LiveService/LiveService_5_EN_XP.cab
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537/2004061001/housecall.trendmicro.com/housecall/xscan53.cab
O16 - DPF: {91433D86-9F27-402C-B5E3-DEBDD122C339} - http://www.netvenda.com/sites/games-intl/pt/games4.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://www.pandasoftware.com/activescan/as5/asinst.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
O16 - DPF: {F9043C85-F6F2-101A-A3C9-08002B2F49FB} (Microsoft Common Dialog Control, version 5.0 (SP2)) - http://activex.microsoft.com/controls/vb5/comdlg32.cab

Any help would be appreciated!

=)