key bindings

I'm using Mozilla 1.3 on RedHat 7.2 on a Dell pc.  A while back I 
changed my key bindings to make them more emacs-like, as per the 
instructions on various web pages:

user_pref("ui.key.accelKey", 18);
user_pref("ui.key.menuAccessKey", 0);

This was in user.js, under the profile "default".  Everything was 
fine.  After a while I set the menu access key to 224, and this 
still worked fine.  Then things stopped working around the time 
that I did a few things: added a new profile (for my girlfriend); 
deleted the profile named after my login name, which got created 
automatically, but which I never used; and restarted Mozilla.  I 
don't remember exactly at which point the key bindings stopped 
working.

Here is the situation I have now, after trying to fix it: both 
user.js and prefs.js have accelKey set to 18 and menuAccessKey 
set to 0, and about:config shows that they are in fact being set 
correctly, but my alt key gives menu access and control key does 
the accel stuff.  That is, alt-t opens the Tools menu, and ctrl-t 
opens a new tab.  I have also reinstalled mozilla, at which point 
it created that profile based on my user name.

What I want is alt-t opens a new tab, and the control key has the 
emacs-style bindings.  (And, if possible, the key with the 
windows icon thingy does menu access.  I guess that's the cmd 
key, 224.)

Thanks in advance.

Ken