The only time I ever get/got this error was when I was using a dial-up connection, and someone picked up the phone, or if I closed/disconnected with the dial-up connect dialog BEFORE disconnecting from the server in mIRC, I assumed that this (connect dialog) was the software that d/c me. hope this sheds some light on your situation. This went or any/all OS's, mIRC versions, servers, networks, or scripts, that I might have been using/trying/testing. now I'm on cable and have never seen the error since. Cheers!