Hi Paul I tried to find out more on my systems but all I have are the values below. I rechecked all of them. 1) SUN 420R, 4x450Mhz UltraSparc II, 4GB RAM, Sol. 8 2) DELL 19" rack, 1xPIII 1Ghz, 512Mb RAM, Sol. 7 Both have the same problem with threading. The computers were set up by two different ISP's. So the problem probably won't be a specific config thing!?? Oliver Erlewein