[OS X Emacs] aquamacs opens X11

[Normen Mueller]

Dear all,

     I am using Intel Mac OS X 10.5.4 and I have just installed  
aquamacs 1.4 after I have installed skim.  I wonder why every time I  
open up aquamacs, X11 gets opened as well???  Is there any way to  
avoid this?

     BTW, on my PowerBook that is not the case, there only aquamacs  
pops up w/o starting X11.

     I would appreciate any suggestions...

Cheers,
   /nm