How to set the 3D cursor in texture paint mode?

Normally left clicking sets the 3D cursor, however in texture paint mode it of course paints on the texture.
I’ve tried holding down combinations of ALT|CMD|CTRL|SHIFT and left click to no avail.

This seems like it used t to work, since it’s mentioned here and there in various tutorials.
What’s the correct method of doing this now (blender 2.67)

3D cursor is only really needed with the clone brush so you need to have that active and then ctrl+LMB to place it.
http://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.67/Paint_System#Texture_Painting_Mode