The handling of the [PageDown] and [PageUp] buttons is a bit quirky. It iterates through the pictures too fast and requires pressing the buttons extremely quick. The result is that I skip each second picture here unwillingly. Thus, pressing one of those buttons should only switch to the next picture or at least the timeout for repeated key press events should be increased a lot.
I am not sure if this is a bug, it just works with your X11 key-repeatrate. Check your settings in the keyboard-plugin, to see if you can improve it there :)
(In reply to comment #1) > I am not sure if this is a bug, it just works with your X11 key-repeatrate. > > Check your settings in the keyboard-plugin, to see if you can improve it there > :) Sorry, now I see what happened here: the launch script for Unreal Tournament modified the keyboard settings which resulted in the enormously huge repeat rate and non-existant delay value. Thus, this report is invalid.