Why does the UV/Image Editor remain empty after UV unwrapping? I have modeled a 430-face six-panel door in Blender. I now want to UV map it. I followed all of the steps in Neil Hirsig's videos on UV mapping: (1) drag-open a second window; (2) set it to UV/Image Editor mode; (3) go to my main window and select the door object; (4) Tab into Edit mode; (5) choose Face selection; (6) box-select all faces; (7) U-key and Unwrap>Cubic Projection ...

... and ...

... my UV map window remains empty. Nada. Zip. Zilch.

If I follow exactly the same steps with a plain cube, I get a UV map for the cube. Does Blender's UV mapping only work for simple objects?
I found my problem in an answer to this question. I had to click the X beside the Render Result, so it would display my UV Map.

Thank you all for your help! :-)