Having a similar problem here. After entering full-screen mode, the viewer starts flickering after a few seconds. It flickers for between a fraction of a second up to a couple seconds, and then works normally for a few seconds before repeating. This only started today, after using it for weeks.
$ eog --version
GNOME eog 2.20.0
$ uname -a
Linux hostname 2.6.22-14-generic #1 SMP Sun Oct 14 23:05:12 GMT 2007 i686 GNU/Linux
Having a similar problem here. After entering full-screen mode, the viewer starts flickering after a few seconds. It flickers for between a fraction of a second up to a couple seconds, and then works normally for a few seconds before repeating. This only started today, after using it for weeks.
$ eog --version
GNOME eog 2.20.0
$ uname -a
Linux hostname 2.6.22-14-generic #1 SMP Sun Oct 14 23:05:12 GMT 2007 i686 GNU/Linux