Hi all!
This might be a noob question, but I am having this frustrating little problem. I am doing some camera tracking, got camera solved, made a simple box that I want to compose over video, and in the box there needs to be some text. I added new text object, and without going into edit mode i started typing thus of course calling different functions, now one object namely that box is shown in 3d viewport above everything else… not being occluded by anything in front of it 
this happens in solid and material view… in wireframe i see my text, in render also… i attached little screenshots to show you (in rendered form) and in wireframe that there is text inside that box, and also i attached screenshot of how box is occluding everything else in the scene…
At first I thought that it must have been one of the letters in “merry christmas” text that called some special feature, so tried retyping it, but that does not seem to be the case… any clues?
Notice how in solid view even camera angle lines are obscured by the box… and the camera is above the box looking in, and angle lines should go over the box, and because text’s silhouette is smaller than the box it is completely invisible…
Please help, really appreciate your time.
Nikola
It’s one of those things that if you don’t use and when it switches on you don’t know what you are seeing.