Adium and Yahoo instant messenger contact lists not working with Leopard

After I installed Leopard, I tried to run Adium. When I tried to click on the icon and pop up my contact list to select a contact, nothing happens. I am now only able to receive messages and reply to received messages. I cannot get my contact list to pop up when clicking the icon in the dock (like I did with Tiger).

I had the same issue when using the latest Yahoo! messenger for Mac. Anyone else seeing this, or know of a fix?