Hello, I didn't see this in the known issues, so I thought I should send a report. I apologize if this is already known. I use the following emacs version/hardware: GNU Emacs 21.4.1 (powerpc-ibm-aix5.1.0.0, X toolkit) of 2005-10-02 on pdslib53 The problem I am seeing is related to tag search. In my .emacs I am set up to enter into outline-minor-mode and hide-other when a c++ file is opened. When I have this enabled and I hit M - . (Meta dash dot) emacs hangs. If is remove the line that tells emacs to open all c++ files in outline-minor-mode all works fine. For my testing I open the same file, visit the same two tag files, and search for the same tag. I have attached my .emacs file(named dotEmacs; Windows...). If this is a bug that you would like more information to fix please contact me and I'll send of anything you need. I often have problems receiving email from the outside world at work so please cc my home email account jdwieber@gmail.com. Regards, Joseph D. Wieber.