I'm trying to open the 'Garmin Aviation Database Manager' program, but it won't let me update it. On the device, I'm getting the error message 'One or more chart files are corrupt. Reload IFR/VFR Charts to correct issue,' and I don't know how to reinstall it. Additionally, when connecting to the internet, it doesn't allow me to update from the device, as it doesn't provide any updates, and it's not connecting to the GPS; I consistently receive a 'no signal' message
