2016-03-30, 10:47 (-0700); ToddAndMargo escriu: > By chance are you using GLSideshow? I was and changed to > Bouncing Cows and the symptom went away. No, I run xscreensaver in "blank screen only" mode, and "lock screen" after 10 minutes. It only happens rarely though, maybe last time I saw it was a month ago. Cheers.