top - 20:43:03 up 18 days, 7:57, 2 users, load average: 4.00, 4.00, 4.00 Tasks: 65 total, 1 running, 64 sleeping, 0 stopped, 0 zombie Cpu(s): 0.7% user, 0.0% system, 0.0% nice, 99.3% idle Here are the top few lines from a top. The system is substantially idle, yet the load reads a consistent '4'. How do I track the source of this behavior down? David