Looking again, it was actually just a corruption of the gnome panel, not a notification window.
I probably wasn't very clear before: this is happening *instead of* the normal 'brightness changed' notification, which doesn't show up at all.
Attached a photo of Lucid..
Looking again, it was actually just a corruption of the gnome panel, not a notification window.
I probably wasn't very clear before: this is happening *instead of* the normal 'brightness changed' notification, which doesn't show up at all.
Attached a photo of Lucid..