FILED PURSUANT TO RULE 424(C)
                                                   REGISTRATION NUMBER 333-78129


                 SUPPLEMENT TO PROSPECTUS DATED AUGUST 13, 1999


THIS  SUPPLEMENTS  THAT  CERTAIN  PROSPECTUS  DATED  AUGUST  13,  1999

In  August  1999, we entered into an agreement with RGC International Investors,
LDC  pursuant  to  which it exercised 150,000 warrants that were issued to it on
March  31,  1999 in connection with the issuance of convertible debentures.  The
common  stock  issuable  upon  exercise  of  the  warrants  was registered by us
pursuant  to  this  prospectus  dated August 13, 1999.  In consideration for the
early  exercise  of  its  warrants,  the  exercise  price  for  the warrants was
decreased  from  $12.375  to  $7.857  and  we issued RGC warrants to purchase an
additional  150,000  shares  of  common  stock with an exercise price of $7.857.



Dated:  November  18,  1999