One of my YS90 Duo strobes died recently so I have replaced it with the new YS110 which arrived yesterday. It works fine apart from one small problem. If I fire the camera with the strobe turned off I get an error 99 mesasage on my camera which then requires rebooting. Easily solved - dont fire the camera with the strobe turned off but has anybody found an out for this problem. I only have the fire pin and earth connected in my housing but I doubt this would be the problem.
Regards Mick