Many thanks for your help, this as left me with a problem. I have followed your instructions, and it definateley say's "64 bit technology" but equally important , i think, is i have also discovered during this investigation that my PC has an "INTEGRATED" video card fitted, something else MACH 3 states will not work. So it looks like i have a decision to make - Do i purchase a computer that runs on 32 bit, with a non integrated video card ? have my local PC Guru convert my current PC, or go along the road of "ETHERNET CONTROLLER" whatever one of those is. Any help or advise on this issue will be gratefully accepted.

Ray