Originally Posted by bigrigdriver
If you're using KDE you can go to Control Center, Regional & Accessibility, Keyboard Shortcuts, Application Shortcuts and chamge the mapping for File - Save to Ctrl S.
In re the timeout, there should be a file in /etc in which you can change a setting to "keep alive" or some such thing. I can't really help you beyond that.
Thanks for the advice, but I am using Cygwin and Putty most of the time. I need to change some setting on the terminal itself, or maybe in my home directory where I ssh into to change the behavior of Ctrl-S etc.
I found the keep alive setting there, so thanks for that. Case is closed as far as that is concerned.