xscreensaver farbled

[Randy Bush]

-current
gnome2-2.8.2
xscreensaver-gnome-4.19

i have a random selection cycle.  used to work.  but ...

xscreensaver is farbled, it shows solid grey and wipes out
debug.  previews show grey too.  but i can see some previews,
but especially not the ones which are in the random cycle.

i moved ~/.xscreensaver aside.  same result, though, of course,
the selected screensavers reset.

i forced a rebuild of the port.

randy