In article ,
Alastair McDonald writes:
I must have been listening to too much left-wing propoganda, because my left
sound channel seems to have worn out :-(.

You could check that you don't have the volume on your left speaker
(assuming that you use speakers rather than headphones) turned down to
zero.
--
John Hall

"Whenever people agree with me I always feel I must be wrong."
Oscar Wilde