[MAP EDITOR] Problem ....?!

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

************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
   at Microsoft.VisualBasic.Interaction.InputBox(String Prompt, String Title, String DefaultResponse, Int32 XPos, Int32 YPos)
   at _2D_Map_Editor.main.wMtpVPBanD9MSB4GUTR(Object , Object , Object , Int32 , Int32 )
   at _2D_Map_Editor.main.ALyOIGcSp(Object , MouseEventArgs )
   at _2D_Map_Editor.main.KfsM0QSmGtADcy2CKw1(Object , Object , Object )
   at _2D_Map_Editor.main._Lambda$__1(Object a0, EventArgs a1)
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.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: 2.0.50727.3625 (GDR.050727-3600)
    CodeBase: file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
----------------------------------------
2D Map Editor2
    Assembly Version: 1.0.0.2
    Win32 Version: 1.0.0.2
    CodeBase: file:///C:/Documents%20and%20Settings/*NAME*/Desktop/2D%20Map%20Editor/2D%20Map%20Editor.exe
----------------------------------------
Microsoft.VisualBasic
    Assembly Version: 8.0.0.0
    Win32 Version: 8.0.50727.3053 (netfxsp.050727-3000)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Microsoft.VisualBasic/8.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll
----------------------------------------
System
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3624 (GDR.050727-3600)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Windows.Forms
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3623 (GDR.050727-3600)
    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: 2.0.50727.3053 (netfxsp.050727-3000)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Runtime.Remoting
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Runtime.Remoting/2.0.0.0__b77a5c561934e089/System.Runtime.Remoting.dll
----------------------------------------
50bcfa8d-9e4f-4449-b2df-56cdd36c87fc
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.2
    CodeBase: file:///C:/Documents%20and%20Settings/*NAME*/Desktop/2D%20Map%20Editor/2D%20Map%20Editor.exe
----------------------------------------
System.Xml
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3082 (QFE.050727-3000)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
DevIL.NET2
    Assembly Version: 1.1.2619.31671
    Win32 Version: 
    CodeBase: file:///C:/Documents%20and%20Settings/*NAME*/Desktop/2D%20Map%20Editor/DevIL.NET2.DLL
----------------------------------------
msvcm80
    Assembly Version: 8.0.50727.3053
    Win32 Version: 8.00.50727.3053
    CodeBase: file:///C:/WINDOWS/WinSxS/x86_Microsoft.VC80.CRT_1fc8b3b9a1e18e3b_8.0.50727.3053_x-ww_b80fa8ca/msvcm80.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:

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

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.