why does my figure window go blank

[Michael Goffioul]

On Sat, Aug 2, 2008 at 5:39 AM, bharat pathak <bharat at arithos.com> wrote:
> Hello,
>
>     I have installed 3.0.1 with jhandles as graphics backend.
>
>    when I say
>    b = [1 1];
>    a = 1;
>    zplane(b, a);
>
>    it plots the figure, but as soon as I make the figure window
>    bigger it just blacks out. any fix for this?

Does it help to minimize and restore the window?

Michael.