Nitrogen and feh doesnt show wallpaper SOLVED

[Rail Balco]

Hi, I have problem with Nitrogen. Installed him, gave him folder where to look for wallpapers, chose wallpaper and clicked "apply" but no change. My background is still black, even after restart (nitrogen --restore & is already in autorun.sh). Even switching colour of background doesn't work. However, I see desired wallpaper when netbook is turning off, but not when it's running.
update: feh is not working as well...
Can someone pls help?

edit - info about enviroment
MSI U210 Wind
Linux Mint 12 LXDE 64bit
Open Box
if you need more, write it and I'll post ASAP

[Rail Balco]

It's by PCManFM, it's handling desktop. Haven't found GUI options for this, but in terminal go

Code: Select all

pcmanfm --desktop-off

or

Code: Select all

pcmanfm --desktop-pref

and set up what you need.
I'll see if nitrogen has something to offer me what pcmanfm cant handle.