roger wrote on May 23^rd, 2009 at 11:49am:

When I change to 0 from 1 it ask if I want to save I say yes It tell's me it can not .How do I keep it to stay on 0

Drag the file to the desktop, change it, save it, drag it back in.

You have to do this when editing all files in FS no motter what it's for (e.g. Installing new livieries or gauges on default aircraft) so remember the procedure ;)