I am a newbie on this forum, so first : hello to everyone, and my apologies if I say stupid things in the beginnning ! I'll try and not p**ss off too much, I promise ! ;-)
To the point :
I did a clean install of MacOS 10.4, and found out that my previous chat software wasn't working very nicely with it. So I made the change to AdiumX.
Very happy with it, but for one point : after installing AdiumX 0.81, I discovered that my AddressBook template had been modified : no more "prefix", Nickname, URL fields visible.
I had to reinstate them thourgh the Preferences. Since then , it's ok.