Hello, trying to reinstall BNA and i get an  error message saying a previous version is already installed.

Shouldn’t be possible because I have totally deleted the scenery completely off of my hard drive.

Any ideas on how to fix?

Also, all of the sudden I’m missing runway and taxiway lights at night.

I'd reach out directly to Shaun:

https://sxairportdesign.com/support/

Hi,

 

Sorry I forget to check AVSIM. Yes the email is the best way to go.

The installer should never say that, it'll just overwrite the files already there? Did you fix this?

 

Kind regards,

 

Shaun.