95e error message at startup (no replies)

Just installed version 95e on 2 system, both old and running clean installs of XP.

One is fine. The other gives the following message:

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.ArgumentException: An item with the same key has already been added.
at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at OpenTK.Platform.Windows.Wgl.SupportsExtension(IntPtr dc, String name)
at OpenTK.Platform.Windows.WinGraphicsMode.ChoosePixelFormatARB(IntPtr device, GraphicsMode mode)
at OpenTK.Platform.Windows.WinGraphicsMode.SelectGraphicsMode(ColorFormat color, Int32 depth, Int32 stencil, Int32 samples, ColorFormat accum, Int32 buffers, Boolean stereo)
at OpenTK.Platform.Windows.WinGLContext.SetGraphicsModePFD(WinGraphicsMode mode_selector, GraphicsMode mode, WinWindowInfo window)
at OpenTK.Platform.Windows.WinGLContext..ctor(GraphicsMode format, WinWindowInfo window, IGraphicsContext sharedContext, Int32 major, Int32 minor, GraphicsContextFlags flags)
at OpenTK.Platform.Windows.WinFactory.CreateGLContext(GraphicsMode mode, IWindowInfo window, IGraphicsContext shareContext, Boolean directRendering, Int32 major, Int32 minor, GraphicsContextFlags flags)
at OpenTK.Graphics.GraphicsContext..ctor(GraphicsMode mode, IWindowInfo window, Int32 major, Int32 minor, GraphicsContextFlags flags)
at OpenTK.WinGLControl.CreateContext(Int32 major, Int32 minor, GraphicsContextFlags flags)
at OpenTK.GLControl.OnHandleCreated(EventArgs e)
at System.Windows.Forms.Control.WmCreate(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.UserControl.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: 4.0.0.0
Win32 Version: 4.0.30319.1008 (RTMGDR.030319-1000)
CodeBase: file:///c:/WINDOWS/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
RepetierHost
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Program%20Files/Repetier-Host%2095E/RepetierHost.exe
----------------------------------------
System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.1002 built by: RTMGDR
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.1001 built by: RTMGDR
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.1001 built by: RTMGDR
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
RepetierHostExtender
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Program%20Files/Repetier-Host%2095E/RepetierHostExtender.DLL
----------------------------------------
OpenTK
Assembly Version: 1.1.0.0
Win32 Version: 1.1.1470.47509
CodeBase: file:///C:/Program%20Files/Repetier-Host%2095E/OpenTK.DLL
----------------------------------------
System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.1015 built by: RTMGDR
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Accessibility
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.1 built by: RTMRel
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/Accessibility/v4.0_4.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
----------------------------------------
RRFirmwares
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Program%20Files/Repetier-Host%2095E/plugins/RRFirmwares/RRFirmwares.dll
----------------------------------------
ColorSlider
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Program%20Files/Repetier-Host%2095E/ColorSlider.DLL
----------------------------------------
System.Core
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.233 built by: RTMGDR
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
OpenTK.GLControl
Assembly Version: 1.1.0.0
Win32 Version: 1.1.1470.47509
CodeBase: file:///C:/Program%20Files/Repetier-Host%2095E/OpenTK.GLControl.DLL
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:



When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.