Modification of User’s .login files. Recently a pass was made by AIX Systems Administration through the AIX accounts modifying a portion of the ".login" files. The portion that was modified contained three statements using the stty command. Only files containing statements of these forms were modified. The targeted form was: /bin/stty disp bsd /bin/stty [various settings] /bin/stty disp posix The change was made due to a problem where the "“/bin/stty disp bsd”" would hang in an unkillable state continuing to use greater amounts of CPU cycles until the system the process was on had to be rebooted. Previous postings have been made regarding the change in the standard dot files to both system news and NETNews. The sweep was performed after several reboots were required. The sweep resulted in finding 3,000 accounts with unchanged dot files. As a result the sweep was performed to preserve system up-time and prevent further reboots. The original statements were based on input from several sources to set stty parameters familiar to most users in a BSD environment. As it turns out, the settings under the BSD environment had no effect on the operations settings under the POSIX environment. Further questions regarding this matter may be directed to "“bugs@oboe.calpoly.edu”".