Ho my bad, sorry I didn't see your message, I was just connecting on the forum to thank you and sector3 for having considered the bug, thank you very much! Led's are working perfectly now ! Note : during the period it was not working anymore, I used instead SLIMAX pro for leds. One interesting feature of this software is that leds are blinking when the speed limiter is activated, making it very clear when you pit during a race, avoiding time penalties in an easy way. I would really love this simple feature in the native handling of leds