Thank you for your advice BagginsBill, I have that resolution (1920*1080) as well. I noticed that there was a User UI pref file that size but not a default UI prefs, to me it is a clue but I am not fluent in python nor brave enough to copy/rename_iteration as default UI/#rename_original_file/test. Comrade 'Gate' has suggested a link for me. If I derive an answer to the issue from this, should I post back to you (should anyone else have the same issue)? It seems a rare occurance. If I could ask one more thing; if I am unsuccessful, while I tried to log a support ticket the issue is technical but is it Configuration, Update, General issue or Other issue? I don't want to get the professionals as confused as I am.