Unhandled Exception Error trying to edit Unattended settings

[Aggienator]

I wonder if anyone can help. I am running nLite on a Windows XP virtual machine with VirtualBox. When I first installed (v 1.4) everything was fantastic and I produced a lovely light install for unattended installation. Unfortunaely in my haste and excitment I missed a couple of fields.

I have gone back to try to correct this. When I select the unattended settings I get a message warning me that previous unattended settings were detected. Clicking OK to this gives me an 'Unhandled exception' error (I have insert ? where there were funny symbols in the details that wouldn't copy and paste):

System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
   at System.Drawing.SafeNativeMethods.Gdip.GdipDrawRectangleI(HandleRef graphics, HandleRef pen, Int32 x, Int32 y, Int32 width, Int32 height)
   at?ystem.Drawing.Graphics.DrawRecta?le(Pen pen, Int32 x, Int32 y, Int32 wid?nt32 height)
   at System.Windows.Forms.Control.PaintException(PaintEventArgs e)
   at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer, Boolean disposeEventArgs)
   at System.Windows.Forms.Control.WmEraseBkgnd(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.ContainerControl.WndProc(Message& m)
   at System.Windows.Forms.UpDownBase.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
mscorlib
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.832 (QFE.050727-8300)
    CodeBase: file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
----------------------------------------
nLite
    Assembly Version: 1.3.9.0
    Win32 Version: 1.3.9.0
    CodeBase: file:///C:/Program%20Files/nLite/nLite.exe
----------------------------------------
System
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.832 (QFE.050727-8300)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
nLite
    Assembly Version: 1.3.9.0
    Win32 Version: 1.3.9.0
    CodeBase: file:///C:/Program%20Files/nLite/nLite.exe
----------------------------------------
System.Windows.Forms
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.5?27.832 (QFE.050727-8300)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.832 (QFE.050727-8300)
        ?odeBase: file:///C:/WINDOWS/assem?y/GAC_MSIL/System.Drawing/2.0.0.0_b03??11d50a3a/System.Drawing.dll
----------------------------------------
ncab
    Assembly Version: 0.0.0.0
    Win32 Version: 1, 0, 0, 3
    CodeBase: file:///C:/Program%20Files/nLite/ncab.DLL
----------------------------------------
msvcm80
    Assembly Version: 8.0.50608.0
    Win32 Version: 8.00.50727.42
    CodeBase: file:///C:/WINDOWS/WinSxS/x86_Microsoft.VC80.CRT_1fc8b3b9a1e18e3b_8.0.50727.42_x-ww_0de06acd/msvcm80.dll
----------------------------------------
nlgw
    Assembly Version: 1.1.0.0
    Win32 Version: 1.3.9.0
    CodeBase: file:///C:/Program%20Files/nLite/nLite.exe
----------------------------------------
MCDBNET2
    Assembly Version: 1.32.0.0
    Win32 Version: 1.32.0.1302
    CodeBase: file:///C:/Program%20Files/nLite/MCDBNET2.DLL
----------------------------------------

Any help gratefully received!

Cheers Aggie