I feel a bit dumb asking this, but I've scoured the preferences and can't find any option about how to disable the built-in notifications (ie, not growl) which are shown when a contact comes online.
I'm using Mac OSX 10.6, latest version of Adium.
I feel a bit dumb asking this, but I've scoured the preferences and can't find any option about how to disable the built-in notifications (ie, not growl) which are shown when a contact comes online.
I'm using Mac OSX 10.6, latest version of Adium.
I think you are looking for Preferences --> Notifications (I guess this will be the english term in the menu).

Here you can not only add and delete sound and growl notifications, but also any other alerts.