I have updated to a newer a version of Mach a few years ago but at age 74 it might as well been in a past life. I downloaded the newer version from their FTP site, and that went well.
But it seems I remember something about backing up a certain file just in case things go Amis, that's all I remember. If someone could give me a step by step procedure I sure would appreciate it.
Thanks
HH aka Mr Chips