I've just replaced my Denon 2900 with an Arcam dv27A to use with my Domino20 but I'm not altogether happy with the picture using the new machine. I've set brightness and contrast using the PAL DVE disc but the picture seems a little yellow looking. I've tried playing about with all the settings but can't seem to settle on anything! My question is can I experiment with the user settings for colour temperature without causing any damage to the machine itself ? I switched from the 'medium' setting to 'user' and then briefly tried reducing the blue setting by 5 which already seemed to look better but I've not tested it with a lot of material. Before I really start playing with it I want to be sure I'm not going to do any permenant damage. Thanks for any advice!