[Tutor] tkinter window not showing max, min and close buttons

[Chris Roy-Smith]

On 21/07/15 17:02, Alan Gauld wrote:
> On 21/07/15 06:05, Chris Roy-Smith wrote:
>> I am working my way through Alan Gauld's tutorial and have just started
>> the section on GUI. The windows that are created look odd with no title
>> bar or maximise, minimise or close window button.
>
>
> The simplest program that should show the icons is:
>
>  >>> import Tkinter
>  >>> top = Tkinter.Tk()
>  >>> top.mainloop()
>
> What do you  see when you type just those lines at
> the >>> prompt?
>
All I get is a white square, with no way to close without using kill

I have done a bit of tinkering and have found that it is only my user 
account that behaves this way.