If I run the gnome control-center program (from the toolbox icon on the gnome panel) and launch Desktop->Window Manager->Enlightenment(Current) from within it, there is a control under the Desktops setting to enable or disable "Edge Flip Resistance". I don't like switching desktops at the edge, so I like to keep this setting disabled. If I save the setting and exit the config program, everything works as expected. Sometime after that, I open the enlightenment config program again and change some other enlightenment settings (say a special F/X setting). Sooner or later (usually every time) after making such a modification, the config program "forgets" about my disabling of Edge Flip Resistance, and re-enables it without me touching the control for it