When I first started with the Raspberry Pi the output from the cgps -s command was displayed with block graphics:
but now I get character instead (e.g "q" instead of the horizontal lines, and "x" instead of the vertical lines etc.). I've obviously done /something/ which has upset the mapping of (I guess) higher-order ASCII characters, but I don't know exactly /what/ I've done.
How can I revert the SSH/PuTTY session to line graphics, and what might I then lose? I.e. what might have needed the extended ASCII characters?