So I have an empty scene, I haven't written any script yet. And I'm getting this error. Any ideas? I wouldn't have been sure it was even NGUI, except that NGUI is the only thing in the project at the moment.
ArgumentOutOfRangeException: Argument is out of range.
Parameter name: index
System.Collections.Generic.List`1[UnityEditor.EditorWindow].get_Item (Int32 index) (at /Users/builduser/buildslave/monoAndRuntimeClassLibs/build/mcs/class/corlib/System.Collections.Generic/List.cs:633)
UnityEditor.DockArea.OnEnable ()