cocoaforge

Hey,
I wanted to make a little applescript that would call growlnotify to send a message to another computer.
It seems possible since growlnotify has the --host parameter.

But when I try I always get a time-out...
When using the ip it fails: When using the computername it fails, but when I write "user@computer" it does not return an error. (but no notification on the other computer)

Is there something I'm forgetting here? Do I need to open up a port in the firewall?
The growl network tab finds the other online computers (hence I'm trying with the computername)

Make shure the both prefs in the Network tab are checked at the other computer.
x Listen for incoming notifications
x Allow remote application registration

I can't enable "Allow remote application registration". Why would it be a disabled option? Know how to fix it?