Hi Earl
I've moved forward a little, but now have a new problem. I dug out my old laptop on which was MYOB and an early version of the .myo file. It used to open without an Administrator password so I gave it a password, saved the file, then moved the USB stick with the old file, now password-protected, to the desktop and ran MYOB again. This time, now that it had an Admin password, I proceeded with uploading it until I reached the screen requiring the serial number and for whatever reason the .myo file doesn't have the correct serial number. It says that I need to change the serial number. How do I do this. I have a record of the correct serial number.
Regards
David