I have Webmin 1.590 on Arch Linux and I'm getting "Error - File not found" message when trying to access certain functions such as "Upgrade Webmin" and "Install Module" because it seems that I'm missing the .cgi script files for them.
I tried installing these files straight from downloadable package from Webmin's website but only got another errror "Missing Content-Type Header".
So what can I do about this?