So, I thought I have turned off all selection highlight features which seems to be the case. I don't really know what you would call this feature. I recently reset to default to try and fix some performance issues and setting up my workspace again.
Whenever I do an line extension/trim line or do a radius I get this ghosting of what the line will be or where it will extend/trim to. Seeing how I do not know the name of this feature I don't know where to look for it to turn it off. I must have figured it out by chance in the past but can't figure it out now. Is it under options somewhere, is it a command prompt entry?
Hope this makes sense.
Nevermind. Figured it out. Called a preview. Kudos to me!