Cheers Guys, I will let you know when it is up and running and when I can steel some time for seti. The reason for only one CPU is that this will be mainly a data transfer buffer between a semiconductor pre-test fab floor and an old VAX system which processes the mojority of the SPC data. We are planning to move to a HP UNIX by the end of next year, but there is a lot of code to be written before then.