Jamie, I did some more experimentation using other window environments (openbox, KDE, Gnome) and I could not reproduce the invisible dialog. This may just be a caused by the way Xfce handles display changes, but I don't know enough to come to any conclusion.
- Bug#860253: xscreensaver: Password dialog is not visible ... Joshua Honeycutt
- Bug#860253: xscreensaver: Password dialog is not vis... Jamie Zawinski
- Bug#860253: xscreensaver: Password dialog is not... Joshua Honeycutt
- Bug#860253: xscreensaver: Password dialog is... Jamie Zawinski
- Bug#860253: xscreensaver: Password dialo... Joshua Honeycutt