Hi Folks. Firstly many thanks to all those who responded so promptly. My first time using this Forum and I am amazed to have had so many replies. Alas, not directly solving my problem .......... but some pointers ..and now part SUCCESS !!
Using a Mac- Mountain Lion/ Epsom 2880. ALways able to print via LightRoom 5 and Word etc but not from PS CS4.
I had the idea to Log out then Log on as a 'Guest'...........and....images printed perfectly.
So I guess there is a glitch in my 'User' Permissions file. I'll try to sort it by removing PS CS4 and re-install. My only worry is that as not supported by Adobe will I get the updates I previously had ? Any ideas ? See you all soon , with success I hope.