ICQ unknown code 28

[kujoe]

To fix the "Unknown Code 28" ICQ connection problem for Trillian v3.x, please load the program and choose Help->Check for Updates. Check the box to update AIM & ICQ and then proceed with the update.

[Roger Zoel]

Or if anyone is having problems with that, you can check this thread at Trillian.cc posted by ameoba:

http://www.trillian.cc/forums/showthread.php?s=&threadid=69886

or here: http://obscurity.ceruleanstudios.com/~gts/aim.dll to download the aim.dll version 3.1.122 directly (but you should still view the thread above)