I have a Pro 78 just took it off the shelf other radar detector died on me. Went to plug it in no display did do a reset but still the same issue it goes through the menu and all but really wish the display worked. Any ideas? maybe time to purchase another however it was working fine when I put it in my closet and have not touched it since. Maybe time to get a new detector was just trying to save some $$$. Any suggestions would be greatly appreciated.