Yeah I have to agree with Adium problems:
1. In order to add a contact i have to ask the other user to add me as well, as otherwise it doesn't work.
2. Some of my contacts are blocked automatically, i need to go to live messenger on mac to unblock them
3. As of recently turns out that people write to me, but i don't receive the messages!

I see the status of the people accounts but not even a single hint that they sent me a message.
4. Some files cannot be sent to me or the other way around. Same goes especially for the pictures.
5. Custom emoticons of other users are simply not displayed, or are displayed but rarely. Seems to be irregular.
And thats just the major problems that Adium has. There is more. So Adium is not that good anymore and it goes without saying that i keep my stuff up to date. In fact it was more stable previously.
P.S. I will give Trillian a try today. I don't remember for what reason I decided not to use it before.