Mismatched names in Adium
By default, Adium enables the option to show recent messages when you receive a new chat. This can cause problems when using Adium with Olark.
It could result in the Adium chat window title showing one name, but the chat messages showing another name. This is because Olark uses placeholder buddies for your chats, replacing the name with each new visitor. Here's how to fix this.
Open Adium. From the menubar, choose Preferences.
Select the General tab.
Disable the option that says 'Show ' recent messages in new chats
That's it. Each time a new visitor sends you a message, it should now open in a new chat tab or window.