Bad interaction between Ultrix and 4.3 machines - nothing to do with
X itself. My .login has something like this in it:
switch ( "`tty`" )
case "*ttyp*":
case "*ttyq*":
case "*ttyr*":
case "*ttys*":
case "*ttyt*":
if ( $TERM =~ xterm* && -f /usr/public/keepalive ) then
( keepalive & )
endif
breaksw
endsw