I go over, I select a light set. My cursor crosses the document window in trying to get to the render menu and the light set changes!!?? What does this? I have been rendering for awhile now, and there are a lot of lights jammed in that teensy white sphere, but I never had it do this before. And I'm punchy trying to get this rendered for the fourteenth-- closer to the 25th-- time, to do that depth of field thingey, and sometimes I can't tell if the dang lights have changed form the window. But I go back and apply the preset [if I can remember it] and sure enough it changed just as my cursor crossed the righthand upper corner of the document window. Has anyone else had this happen or am I just cursed? Again. Emily I used to have a printer that would only work correctly if I was not in the room. Honestly.