I have two r40s I loved the remote but the screens have not held up. One has lines all over to the point it is unreadable and the other has and few lines through the screen and is getting dim. I just picked up a couple of the old r50 real cheap so I'll try these out and hopefully at least these will hold up better. I also had the firmware issue that required sending them both back to urc. I was extremely disappointed in the screens of the r40 for the money I had rapped up in them.