I made another build of HW for 020-060 but it is still unstable. I am not sure which of the rpm installs caused it. It crashes quite easily and left a file with this name ____0_ The download is here: http://www.p.slegg.scubadivers.co.uk/download/highwire060.app As I write this, I just checked the stack and it is still 64k. I will fix the stack size and have another go. Peter