If you are using *NIX, then you can always send a "kill -18 [pid]". (I have a bash script that shuts off high CPU tasks, if your CPU gets above a certain temperature, if you want it) -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.blender.org/pipermail/bf-cycles/attachments/20120603/51da5144/attachment.htm