on a friend's Laptop there is also 2-3 pixel area at the bottom of the panel where the wallpaper shines through. It runs the latest Gutsy with Riddell's KDE4-Repository and has an ATI x1400 with the latest proprietary drivers. So i don't know if this is related, but disableing the desktop effekts also makes this problem disappear.
on a friend's Laptop there is also 2-3 pixel area at the bottom of the panel where the wallpaper shines through. It runs the latest Gutsy with Riddell's KDE4-Repository and has an ATI x1400 with the latest proprietary drivers. So i don't know if this is related, but disableing the desktop effekts also makes this problem disappear.