Hey all at Binary Fortress,
Not sure if this is anything do with your most recent beta 4 but ever since it installed, when I connect to my office computer remotely (RDP) the solid desktop color that is set within "Desktop Wallpaper" in DF changes from what I specifically set to black after a short time. Obviously the images are ommited but the color is changing. With a local logon everything seems correct.
Note in the registry I see the value in HKEY_CURRENT_USER\Control Panel\Colors - Background change to 0 0 0. Also note that when this happens Custom.theme in LocalAppData\Microsoft\Windows\Themes updates with Background=0 0 0

Going back to Beta 3 seems to have fixed it.

Pete

Owen, not really got the time for this (re-install B4 and create video). I reverted to B3 which fixed it.
key notes.3 monitors in use, 2 landscape, 1 vertical. DF set to slide show on 2 landscape but not vertical.
I have the backround for area surrounding images set to custom RGB value. Upto B3 a logon via RDP resulted in the background solid color that I set, the images were not used. After B4 install after RDP logon and DF loading, I am guessing at what would have been the time interval of the BF slide show image change (on a normal logon) the background value in the registry was to 0 0 0 and the desktop set to black. If I manually set it back to 0 53 102, after time interval it was again changed to black. I attach DF wallpaper settings.