When starting glightoff, it fails with the error Could not find image file: /usr/share/pixmaps/glightoff/bulb_on.svg Please check GLightOff is installed correctly. The missing file exists at the mentioned path. Turns out the problem is the missing support for svg for GdkPixbuf. Without librsvg, the gdk-pixbuf image loader for svg (/usr/lib/gtk-2.0/2.4.0/loaders/svg_loader.so on my system) is missing, which means glightoff can't load its graphics because it uses gdk_pixbuf_new_from_file for this. After emerging librsvg, the game starts. So I think glightoff should rdepend on librsvg. games-puzzle/glightoff-1.0.0 x11-libs/gtk+-2.8.12 gnome-base/librsvg-2.12.7
Fixed in CVS... thanks for the bug report