Nearest Snap Problem

[tblack.62739]

I've got a computer that will not allow me to modify my Nearest Snap button. It keeps tossing up the error:

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 Autodesk.AutoCAD.Customization.CustWrap.IsPopMenuEmpty(PopMenu pop, ArrayList empties, ArrayList nonEmpties)
at Autodesk.AutoCAD.Customization.CustWrap.IsPopMenuEmpty(PopMenu pop, ArrayList empties, ArrayList nonEmpties)
at Autodesk.AutoCAD.Customization.CustWrap.FindEmptyPopMenus()
at Autodesk.AutoCAD.Customization.CustWrap.FileValidation()
at Autodesk.AutoCAD.Customization.CustWrap.Save()
at Autodesk.AutoCAD.Customization.Document.Save()
at Autodesk.AutoCAD.Customization.MainForm.okButton_Click(Object sender, EventArgs e)
at Autodesk.AutoCAD.Customization.MainForm.applyButton_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
...

Can anyone help me with this problem?

[RobertB]

Well, it means that an item is somehow empty in the XML file. Can you think of the steps you took that caused this to occur? I've done it myself, but cannot replicate. Also, please zip and post your cui file.