Strange window display

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. 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