Pic looks ok in library but as soon as develop tab is click the pic becomes extremely over-saturated to the point that you can barely even make it out. This is not a blue turning purple this is a freak show acid trip, rainbow type of over saturation.Any advice is much appreciated, just downloaded LR CC tonight so this is my initial introduction.
Go to Edit > Preferences > Performance (on a Mac: Lightroom > Preferences > Performance), and uncheck Use graphics processor.
Thank you Per Berntsen your reply did the trick and fixed the problem I was having. Much appreciated