If you do a spotread -? what instruments or serial ports does it list ? If it just lists ** No ports found **after -c, then this means that there are no USB instruments that Argyll recognizes plugged in, and that there are no serial ports on the computer.Is your instrument a rev. B ?
Yes, it is.
Are you running any other software on that computer that accesses the instrument, and if so what ? Does it successfully see the instrument ?
Yes, Eye One Match drives the instruments correctly
Is the instrument plugged into the computer directly, or is it via somesort of hub or via a keyboard or display ?
No, plugged directly
What sort of Mac is it ?
An Imac
Graeme Gill.
Thank you Marco
