[ale] Nautilus (2.0.6/RH8) jpg display

[cb at kona-kahuna-nui.com (CB Genrich)]

When I use Nautilus (2.0.6 on Redhat 8) to view a folder
with .jpg files (maybe others?) I find that many of the
miniatures??are only partially shown. ??It can be hard to
preview the image this way.

What generates these miniatures, why would it make the
lower 50% to 90% sometimes be just gray, and how could
I force it to render them completely?

-- 
  CB Genrich
 Kona Kahuna Nui, LLC
 www.kona-kahuna-nui.com
 cb at kona-kahuna-nui.com