Sarah hope this helps ;
http://www.trillian.cc/forums/showth...threadid=32213
Fix (workaround) for the above issue
If they take you OFF the visible list,
you will be able to send them messages.
You will obviously not be able to see them because they are invisible,
and you are NOT on the visible list,
but you will be able to send messages back and forth.
This problem had been driving me crazy till I tried this.
This is obviously not a solution, but it will at least
fix one of the symptoms untill
whoever the cause of the problem itself fixes it.
ICQ/Trillian