Like Wayne said on your other post, "Turn off Instant 3D".
Also, what color are your sketch entities? Blue? Black?
I think what Simo wants when he says fully defined is for the free endpoints of lines not to move either. Correct me if I'm wrong, but if you fix a line that has endpoints not attached to another line, they remain free unless you grab the endpoint and fix them also. This is just the way SW works.
Simo, you won't find many people that advise using the fix relation for a permanant way to define a sketch, just temporary. Most people dimension their sketches to define them if they want them fully defined. Just my opinion.
Simo Lahti wrote:
If sketch lines were fixed or related for example horizontal, I still can drag them in direction of length. And if they were not, I can drag them anywhere!
Has anyone seen or solved the problem or is only my case!?
-The Great White Hunter-