Mac OSX 10.5 problem connecting to Arduino diecimi

i have installed a diecimila to a mac with os 10.5. all seemed to go well, but now in the Network window of the System Preferences, i see FT23...UART, which i take to be the diecimila. it tries to connect, but always fails with the error:

Internet Connect
Could not netogiate a connection with the remote PPP server. Please verify your settings and try again.

i have looked at the installation manual, but have not seen anything like this problem. i saw a post which suggested changing the usb driver group to be wheel, which i did, but that did not help.

You don't want to connect using the Network window. If you run the Arduino software, do you see the /dev/tty.usb device in the Tools > Serial Port menu? Select that and try uploading a sketch.

excellent. this did the trick immediately (especially once i remembered to switch Tools settings to recognise the tty usb port instead of the com1 which the mac version of arduino processing seems to default to!

many thanks,
julian darley

thanks for this.