I've just re-installed Rpi Raspbian for the third time (checking things out) and deliberately left the 'locale' setting in 'raspbi-config' untouched (past experience).
I'm now trying to install Evolution, and when I enter my email address I get a UK substitute for the @ sign, which makes further progress impossible. The hash key ( # ) prints the pound sign (old Latin 'L') and other substitutions occur.
Where and why is this happening?