I have the same issue with xscreensaver's GLSlideshow screensaver.
When I set the value of "Always show at least this much of the image" option between 75% and 100%, I get the error message when the screensaver starts and I don't see the pictures. When I change the setting to somewhere between 50% to 75% the issue disappears.
I have the same issue with xscreensaver's GLSlideshow screensaver.
When I set the value of "Always show at least this much of the image" option between 75% and 100%, I get the error message when the screensaver starts and I don't see the pictures. When I change the setting to somewhere between 50% to 75% the issue disappears.
I am using Xubuntu Jaunty 9.04.