Old reference image won't go away

[system]

I recently made a sculpture of Leonard Nimoy and used the Texture / Image Plane for my reference image. When I was done with the sculpt, I clicked on Preferences / Init ZBrush to move onto my next sculpt, thinking it would clear everything out. However, whenever I click on Texture / Reference Views / Front for reference, up pops Leonard Nimoy. He doesn’t appear in the Tool palette as being part of the project, so I have no idea how to delete him.

How do I get rid of Spock? He’s living long and prospering in my reference.

(If you need to know, I’m using ZBrush 4R7 Patch 2 on a Mac OS 10.9.5)

[marcus_civis]

The Image Plane images are stored in the project memory which doesn’t get cleared when you initialize ZBrush. The simplest way is to load a project such as the DefaultSphere under the Projects tab in Lightbox. (You can always delete the sphere if you don’t want it.)