http://imagej.273.s1.nabble.com/Empty-windows-on-Ubuntu-with-3D-effects-tp3694967p3694968.html
> Hi all
>
> Some time ago I asked the list about a bug where the contents of
> ImageJ windows are not rendered when ImageJ is running on Ubuntu with
> 3D desktop effects enabled. I had a couple of useful replies from the
> list and submitted an issue to Sun, which has received a bit of
> attention over the last couple of days.
>
> At the moment, it appears that the empty window bug is fixed in JRE7,
> which you can download and test:
>
https://jdk7.dev.java.net/> (it is buggy at the moment - I keep on getting windows that are locked
> so I can't close them)
>
> But the second part of the bug is not fixed: ImageJ windows are
> missing from the panel / Awn list.
>
> I'm hopeful that this will be resolved, so will keep you informed of
> progress.
>
> Cheers
>
> Mike