I get a little scared of saving and restarting a scene when its cooking, because I've had too many scenes come back all screwed up-- textures baked on the skin, poses gone. Have to start over. This was my first two character scene and I was scared of losing it once I got it right. Sorta right, anyway. Plus it was in an inclosed space and maneuvering stuff in that was exhausting. Anyway, as long as I don't cross the document window with the cursor, it doesn't go wonky. Maybe I'm turning a light on by passing over it. I'm certainly not clicking. Thank you everybody for workarounds. Emily