I run the HjackThis tool to discover the cause of a black screen with little red stripes that appears after I use Internet Explorer, blocking computer.
This is the log file.

Logfile of HijackThis v1.99.1
Scan saved at 18.59.35, on 26/08/06
Platform: Windows 98 SE (Win9x 4.10.2222A)
MSIE: Internet Explorer v5.00 (5.00.2919.6304)

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:\PROGRAMMI\NETSCREEN\NETSCREEN-REMOTE\IREIKE.EXE
C:\PROGRAMMI\NETSCREEN\NETSCREEN-REMOTE\IPSECMON.EXE
C:\WINDOWS\SYSTEM\RNAAPP.EXE
C:\WINDOWS\SYSTEM\TAPISRV.EXE
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\TASKMON.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\WINDOWS\SOUNDMAN.EXE
C:\PROGRAMMI\GRISOFT\AVG FREE\AVGCC.EXE
C:\PROGRAMMI\GRISOFT\AVG FREE\AVGEMC.EXE
C:\PROGRAMMI\GRISOFT\AVG FREE\AVGAMSVR.EXE
C:\PROGRAMMI\MICROSOFT OFFICE\OFFICE\OSA.EXE
C:\PROGRAMMI\MICROSOFT OFFICE\OFFICE\FINDFAST.EXE
C:\PROGRAMMI\WINZIP\WZQKPICK.EXE
C:\PROGRAMMI\FOCALPOINT\DPS\GALSA.EXE
C:\WINDOWS\SYSTEM\WMIEXE.EXE
C:\PROGRAMMI\FOCALPOINT\DPS\SYSTEM\DPSEXE.EXE
C:\FP\SWDIR\gostart.exe
C:\FP\SWDIR\wtcpsrv.exe
C:\WINDOWS\SYSTEM\WSASRV.EXE
C:\FP\SWDIR\wmsgrtr.exe
C:\FP\SWDIR\cvpm.exe
C:\FP\SWDIR\cvtedisp.exe
C:\FP\SWDIR\CVPE.EXE
C:\FP\SWDIR\cvtetcp.exe
C:\WINDOWS\DESKTOP\HIJACKTHIS.EXE

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Programmi\Spybot - Search & Destroy\SDHelper.dll (file missing)
O3 - Toolbar: @msdxmLC.dll,-1@1033,&Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
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: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\GRISOFT\AVGFRE~1\AVGCC.EXE /STARTUP
O4 - HKLM\..\Run: [AVG7_EMC] C:\PROGRA~1\GRISOFT\AVGFRE~1\AVGEMC.EXE
O4 - HKLM\..\Run: [AVG7_AMSVR] C:\PROGRA~1\GRISOFT\AVGFRE~1\AVGAMSVR.EXE
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [SchedulingAgent] mstask.exe
O4 - HKLM\..\RunServices: [IREIKE] C:\Programmi\NetScreen\NetScreen-Remote\IreIKE.exe start
O4 - HKLM\..\RunServices: [IPSecMon] C:\Programmi\NetScreen\NetScreen-Remote\IPSecMon.exe start
O4 - Startup: Avvio Office.lnk = C:\Programmi\Microsoft Office\Office\OSA.EXE
O4 - Startup: Ricerca rapida.lnk = C:\Programmi\Microsoft Office\Office\FINDFAST.EXE
O4 - Startup: WinZip Quick Pick.lnk = C:\Programmi\WinZip\WZQKPICK.EXE
O4 - Startup: Print Manager.lnk = C:\My Documents\Focalpoint PM\Host.gsa
O4 - Startup: Focalpoint.lnk = C:\FP\SWDIR\Fplogon.exe
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O16 - DPF: {10981C84-2509-402D-9E30-CB889453B1BE} (B2BFlashLoader.B2BFlashLoaderLib) - http://www.tuagenzia.it/downloadfiles/acti…FlashLoader.CAB
O16 - DPF: {B68AAAA1-D045-4ADC-8A7D-350F9F59CC7F} (NvpManager.Interface) - http://10.193.128.140/NVPportal/htdocs/act…/NvpManager.cab
O16 - DPF: {8DC1780D-BCE3-422F-A807-D3D47894612E} - ms-its:mhtml:file://c:mp.mht!http://gromozon.com/1899c226/50300/4//x.chm::/x.ocx
O16 - DPF: {640DB888-6A57-409C-A329-5D87FEF1EC06} - http://gromozon.com/1899c226/50300/1/xp/FreeAccess.ocx
O17 - HKLM\System\CCS\Services\VxD\MSTCP: NameServer = 62.94.0.1,62.94.0.2

Could you please help me?
Thank's!!!
Cristina