post this in the distributed computing forum, and you'll get more responses...not that the answer to your question is disputable or anything. your temps are as high as they are b/c SETI@home, both GUI and CLI, use up all your CPU's otherwise wasted cycles. so yes, your CPU is considered to be under a full load if you are running SETI@home in the foreground or background. the CPU may appear idle while SETI is running in the background, but it most certainly is not idle.