The version of Mach is very specific to the MP3000 software and that is the one I am using.
However, I just did a very simple test. I installed Mach and the "crashing" MP3000 software on my office computer. This computer has a zillion programs, anti-virus, firewalls, etc. No optimization or anything like this on that one.
And guess what, no MP3000 crashes. Because a few other versions of the MP3000 software didn't crash my Mach computer, I had been assuming that because this one did that it was faulty. But like I say it's not crashing my office computer.
I am forced to suspect now that the "Mach computer" I've just bought has problems. I'll try pulling everything to pieces, giving it a clean,etc and see if that helps. Otherwise might try a new motherboard.
Thanks for the reply anyway,
Keith.