Version: (using KDE 4.3.1) OS: Linux Installed from: SuSE RPMs If you get disconnected from ICQ the error message is shown as a regular message not as a kde4 plasma-message.
The notification system in KDE changed in 4.4 AFAIK, I think this is not a problem anymore. Do you still have this problem? If no I will close this bug.
*** This bug has been marked as a duplicate of bug 265811 ***