Microsoft .NET Framework fejl-popup ved startup

Hej.

Når jeg starter Windows, kommer den med en fejl der siger

"Der opstod en ikke-afviklet undtagelse i programmet. ....."

og i detaljer står der:

"Se slutningen af denne meddelelse, hvis du vil have detaljer om,
hvordan du starter JIT-fejlfinding i stedet for denne dialogboks.

************** Undtagelsestekst **************
System.FormatException: Ugyldigt tegn i en Base-64-streng.
  ved System.Convert.FromBase64String(String s)
  ved RAVCpl64.frmBmControl.GetSettings(String addressUrl)
  ved RAVCpl64.frmBmControl.frmBmControl_Load(Object sender, EventArgs e)
  ved System.EventHandler.Invoke(Object sender, EventArgs e)
  ved System.Windows.Forms.Form.OnLoad(EventArgs e)
  ved System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
  ved System.Windows.Forms.Control.CreateControl()
  ved System.Windows.Forms.Control.WmShowWindow(Message& m)
  ved System.Windows.Forms.Control.WndProc(Message& m)
  ved System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
  ved System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Indlæste assemblies **************
mscorlib
    Assemblyversion: 2.0.0.0
    Win32-version: 2.0.50727.5456 (Win7SP1GDR.050727-5400)
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v2.0.50727/mscorlib.dll
----------------------------------------
RAVCpl64
    Assemblyversion: 1.0.0.653
    Win32-version: 1.0.0.653
    CodeBase: file:///C:/Users/Administrator/AppData/Roaming/Realtek%20Semiconductor/Realtek%20HD%20Audio%20Manager/1.0.0.653/RAVCpl64.exe
----------------------------------------
Microsoft.VisualBasic
    Assemblyversion: 8.0.0.0
    Win32-version: 8.0.50727.5420 (Win7SP1.050727-5400)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Microsoft.VisualBasic/8.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll
----------------------------------------
System
    Assemblyversion: 2.0.0.0
    Win32-version: 2.0.50727.5456 (Win7SP1GDR.050727-5400)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Windows.Forms
    Assemblyversion: 2.0.0.0
    Win32-version: 2.0.50727.5456 (Win7SP1GDR.050727-5400)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
    Assemblyversion: 2.0.0.0
    Win32-version: 2.0.50727.5458 (Win7SP1GDR.050727-5400)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Runtime.Remoting
    Assemblyversion: 2.0.0.0
    Win32-version: 2.0.50727.5420 (Win7SP1.050727-5400)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Runtime.Remoting/2.0.0.0__b77a5c561934e089/System.Runtime.Remoting.dll
----------------------------------------
System.Deployment
    Assemblyversion: 2.0.0.0
    Win32-version: 2.0.50727.5420 (Win7SP1.050727-5400)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Deployment/2.0.0.0__b03f5f7f11d50a3a/System.Deployment.dll
----------------------------------------
System.Deployment.resources
    Assemblyversion: 2.0.0.0
    Win32-version: 2.0.50727.4927 (NetFXspW7.050727-4900)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Deployment.resources/2.0.0.0_da_b03f5f7f11d50a3a/System.Deployment.resources.dll
----------------------------------------
System.Xml
    Assemblyversion: 2.0.0.0
    Win32-version: 2.0.50727.5420 (Win7SP1.050727-5400)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
mscorlib.resources
    Assemblyversion: 2.0.0.0
    Win32-version: 2.0.50727.5456 (Win7SP1GDR.050727-5400)
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v2.0.50727/mscorlib.dll
----------------------------------------
System.Configuration
    Assemblyversion: 2.0.0.0
    Win32-version: 2.0.50727.5420 (Win7SP1.050727-5400)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Windows.Forms.resources
    Assemblyversion: 2.0.0.0
    Win32-version: 2.0.50727.5420 (Win7SP1.050727-5400)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Windows.Forms.resources/2.0.0.0_da_b77a5c561934e089/System.Windows.Forms.resources.dll
----------------------------------------

************** JIT-fejlfinding **************
Hvis du vil aktivere JIT-fejlfinding, skal værdien jitDebugging indstilles
i afsnittet system.windows.forms i konfigurationsfilen
for programmet eller computeren.
Programmet skal desuden kompileres med fejlfinding
aktiveret.

Eksempel:

<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>

Når JIT-fejlfinding er aktiveret, bliver alle ikke-afviklede
undtagelser sendt til den JIT-fejlfindingsfunktion, der er registreret på computeren, i stedet for
at blive afviklet af denne dialogboks."

Jeg har prøvet at søge på google men fandt ingen svar.

Kan nogen hjælpe?

Mvh Alex