I have a similar problem but in the upper ESC-F-key row. When I turn off backlighting, it turns off normally, but after some time (not always) most of the top row keys light up slightly by themselves and it looks just as in the picture above. Replugging the keyboard doesn't help (after unplugging and plugging back in, the lights are just the way they were before). What helps to disable the lights is turning the backlighting on and then back off. Also, this didn't happen with 119 firmware. Cheers, Mich.