adding pics to xfce?

[tfaranyosi]

I like using multiple backgrounds on my LL 2.0. However when I copy pictures into the /backgrounds/xfce folder all files will be locked up. If I change the background location to somewhere else, after closing the desktop settings app it defaults back to the xfce directory. So 1, How do I unlock the picture files in the xfce directory, or 2, make the change in the desktop setting app stick?

Thanks