I recently asked and was advised to check the box that mandates a fully defined sketch before rebuild or addition of a feature. I am fine with this and like having a fully defined sketch. However, I am getting very frustrated. All I try to do is draw a simple sketch and put in smart dimensions and craziness happens (overriding sketch, over defining, etc.). What I do is go to every yellow entity (conflicted) or blue (under-defined) and select it. I edit the line properties (relations > hor, vert, fix) and then the line is defined. What does fix do. The whole thing just doesnt make sense to me. I have to go to properties and hit fix. None of the properties change from what I wanted. Solidworks attempt to explain the fully define process is not enough. Any help with something I am missing or where to go to search this concept is greatly appreciated. Drawing a fully defined trapezoid should not be a hard thing or time consuming thing to do. I have been drafting a long time with other programs and never had such problems.