Used laptop with CDJ Nexus now preferences tabs changed and won't recognize RZX

I set rekordbox up on laptop with DJ dvs and video licenses activated. Used with RZX for a few days. Tried to plug laptop into a nexus setup, cdjs and mixer, downloaded appropriate patches when prompted. Had a little mess around but couldn't get much out of it. Got home set up laptop with RZX again and preferences for RZX aren't there, screens just display midi control and won't do anything....! Help!