When I first installed software version 5.80 Express showed 5.80 but now it shows 5.70 but when I click on Tools & Content it shows the correct 5.80 version. I have removed the 50 from express and re added it with same results. Shows version 5.80 on the unit itself under device info and 5.80 under garmin and garmin device. Not sure which version of express I used when 5.80 first came out. Something must have happened with latest 6.10.0.0 Express. It says You're up to date! on main page. Maybe someone else that has the DriveLuxe 50 can check this out.
Jerry