On Sun, 12 Aug 2018, Marvin Jones wrote:

>I am building a new workstation -- running Ubuntu 16.04 -- to
>replace an old and failing workstation.  I used the TDE ISO
>to get 'things' started.
>
>Several of my programs are displaying in a weird window format.
>(I am not sure if attachments are permitted, but)
>Attached are a couple of examples
>
>Display_OK.png
>---  is a    zenity --info --title=Display_OK --text="Hello World"
>running on my "failing" workstation.
>
>Display_snafu.png
>---  is the same   zenity --info --title=Display_OK --text="Hello World"
>running on the new workstation.
>
>Bluefish_snafu.png
>---  is bluefish running on the new workstation.
>
>I see the same for the AisleRiot solitaire program.
>
>No doubt it is something "simple", but nothing comes to mind.

OBTW, it's Trinity 14.0.5 ...

I now see some error/diagnostic messages I did not see before:

$ zenity --info --title=Display_snafu --text="Hello World"

(zenity:20714): Gtk-WARNING **: Theme parsing error: gtk.css:4:14:
Theming engine 'tdegtk' not found
Gtk-Message: GtkDialog mapped without a transient parent. This is
discouraged.

Well,
$ locate tdegtk
/usr/lib/gtk-3.0/3.0.0/theming-engines/libtdegtk.la
/usr/lib/gtk-3.0/3.0.0/theming-engines/libtdegtk.so
/usr/lib/gtk-3.0/3.0.0/theming-engines/libtdegtk.so.0
/usr/lib/gtk-3.0/3.0.0/theming-engines/libtdegtk.so.0.0.0
/usr/share/themes/tdegtk
/usr/share/themes/tdegtk/gtk-3.0
/usr/share/themes/tdegtk/gtk-3.0/gtk.css

OK --  Now I'm definitely in an area where I have no knowledge or
experience.

How do I fix this?

Thanks in advance,
Jonesy
-- 
<pre>  Marvin L Jones     | Marvin     | W3DHJ  | linux
        Pueblo, Colorado  |  @         | Jonesy |  FreeBSD   __
         38.238N 104.547W |   jonz.net | DM78rf |   OS/2     SK