I'm running on a MacBook Pro Retina model.
I would advise not choosing 'Full Screen' in the options menu until a fix is found for this.
If you are running at full retina display mode you will only see the the Playback Fader area as per attached picture.
The only way I have found to get out of this is power off the mac, change resolution to lower which forces CueLux Pro to resize when it opens.

On another note:
Hmmm, this is very different form VDMX and seems a very steep learning curve. It certainly doesn't seem very intuitive and I'm finding the workflow quite slow as a result of the graphical interface. The font is not ver clear at all. Clicks don't seem very responsive either.
Right now, I'm feeling very sad about this.
Ross