I am running DF 3.1.10.111 (Beta 11) with dual monitors. I have "Allow DisplayFusion to manage the Screen Saver" checked along with "Span Scree Saver across all monitors" checked. I have selected "My Pictures Slideshow" which points to a folder that I store my JPGs that I also use for the wallpapers. The previews when looking at the settings look correct; however, the photos are still only displayed on one monitor.

"Use Preview Mode for this screen saver" is checked.

Am I missing a setting?

I have the same issue using Webshots screensaver.