I also tried the following: I rebooted, verified that the system beeps when I scroll fast a web page. Then I killed all processes that start in "Registry\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVers ion\Run" and the "C:\Documents and Settings\All Users\Start Menu\Programs\Startup" (the startup folder of the current user is empty)
Those are: Avast=C:\Program Files\Avast4\ashDisp.exe itouch=C:\Program Files\Logitech\iTouch\iTouch.exe NvCplDaemon=RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup nwiz=nwiz.exe /install zBrowser Launcher=C:\Program Files\Logitech\iTouch\iTouch.exe KernelFaultCheck=... ClipX=C:\Program Files\ClipX\clipx.exe IntelliPoint=C:\Program Files\Microsoft IntelliPoint\ipoint.exe NvMediaCenter=RunDLL32.exe NvMCTray.dll,NvTaskbarInit SunJavaUpdateSched=C:\Program Files\Java\jre1.6.0_03 \bin\jusched.exe\ The problem was not solved. Again, I had to unload and load ppro.
