Glitchy-looking transparent alpha channel PNG when imported as "Image as Plane" in Cycles I'm following this tutorial, and when I import the reference image I get a glitchy plane:



(the one on the right is the Image as Plane, while the one on the left is an Empty with an image)

I have made sure that the image, found online, was transparent, using Photoshop:



In trying to troubleshoot this, I have looked at this question, but it doesn't help me, as I can't reproduce the steps given in the answer.

Basically, I'm stuck looking for parameters for this object. There's nothing in the Object Data panel, I tweaked Viewport Alpha in the Material tab but still nothing...
When you click import images as planes and the file browser opens, in the lower right, under 'import images as planes', you need to check the  use alpha checkbox, or you will get bizarre alpha junk.  Why this isn't a default I have no idea. 



As an alternative on the UV/image editor press N to bring up the options window and enable "Use Alpha"