hi
I don't use FBI because it drop some color ...
try to use xli, which include in some midori distro ...
I use the following command to use my IA-1 like a picture frame ...
I write a script, but I can't random the pictures 
xli -onroot -fillscreen -display localhost:0.0 file.JPG
If you want I could post here the complete script, but I'm not a programmer, and it was really written in "bad" code !!!!!
--== Geo ==--