Originally Posted by 04Stefan07
Both machines detect a cable plugged into the computer but cannot establish the connection which is where it fails.
One diagnostic that is extremely useful is to simply open the system console
and look for log items related to the adapter.
Mac OS X is based on UNIX and at some point it will instantiate a serial device
in the /dev directory which is the device the planetarium application will need to open
and read and write to.
Also look for log messages in the console such as a failed open on a serial device
from the planetarium program.
Check that the name of device that the OS instantiated for the adapter is the same device
expected by the planetarium. For example, you may need to do a chmod and change permissions
on the device or add a symbolic link.