Cannot select Custom Wallpapers

[fosnez]

Greetings,

I am having an issues selecting a custom wallpaper.

This is how I have been trying to do it:

Setup > Display
Switch to the Wallpaper Tab
Arrow down to the Wallpaper entry
The current selection iitem s ticked as Don't Use
I am not able to arrow across to Use
When I press the control stick in, I get returned to the Setup screen

Do I have to have any the Wallpaper in any particular directory? Do they have to be any specific type of file? (8 bit BMP? 24bit JPG?)

I am running on the latest firmware 1.91F, but the same problem happened on the old firmware.