Error message from apt-get installation

[Sharon Kimble <skimble04@gmail.com>]

Whenever I install a program now with apt-get I get the following
error message;-
===============================================
Processing triggers for man-db ...
No protocol specified
frontend: cannot connect to X server :0
debconf: unable to initialize frontend: Kde
debconf: (DISPLAY problem?)
debconf: falling back to frontend: Dialog
===============================================
and then the installation continues and succeeds. How do I resolve this please?

Thanks
Sharon.
-- 
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