I have upgraded to Fvwm 2.5.13, but when I restart I can’t choose Fvwm from the gnome menu.
Look here: http://fvwm.lair.be/viewtopic.php?t=7.
[color=red]So this is a duplicate, locking and moving to dups.[/color]
Would you please start considering searching the forum, most common questions will already have been answered before and continuing on an older thread (if you have the (very) same problem) is better than starting duplicate thread number #100…
I typed gdm in the search box and the 16th thread already was exactly what you are asking.