New vidcontrol moused error messages

[walt]

This began after today's vidcontrol update:  when starting
moused I get this error message printed eleven times:
vidcontrol: showing the mouse: invalid argument
although the mouse seems to work normally after that.
The only mouse-related item in rc.conf is moused_enable="YES"
/etc/defaults/rc.conf is v1.9 dated 15 April.
/etc/rc.d/moused is v1.2 dated 27 Jan.
I have a symlink /dev/mouse -> sysmouse.  The mouse is a ps/2
connected through a KVM switch.
Anyone else seeing this?