At the request of Bob Shults, I am enclosing our proposed form of 
Non-Disclosure Agreement.  If you have any comments or questions you would 
like to discuss with me, do not hesitate to call me at (713) 853-3399.  If 
the NDA meets with your approval, please return a copy to me via fax no. 
(713) 646-3490.  We look forward to hearing from you.