On start-up, xfce4 loads lots of desktop pictures (I have the settings set to 'image list') one after another (about 10, but I have the feeling it gets more and more). That by itself would be no problem, but then it decides to show no background image, just an awful shade of brown. Plus, it shows files (icons) on the desktop, which I don't want.
Where could I start to look to fix it?