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Exhibit 12.1


Ratio of Earnings to Fixed Charges

 
  Year ended December 31,
   
 
 
  1999
  2000
  2001
  2002
  2003
  2004
 
 
  (amounts in thousands)

 
Net loss   $ (8,357 ) $ (21,312 ) $ (13,806 ) $ (4,560 ) $ (11,887 ) $ (5,002 )
Plus fixed charges:                                      
  Interest expense on Indebtedness     37     26     729     465     76     260  
  Amortization of Borrowing Expenses                         95  
  Portion of Rental Expense under operating leases deemed to be representative of the interest factor     109     471     555     556     706     1,091  
   
 
 
 
 
 
 
      146     497     1,284     1,021     782     1,446  
   
 
 
 
 
 
 
Adjusted net loss     (8,211 )   (20,815 )   (12,522 )   (3,539 )   (11,105 )   (3,556 )
   
 
 
 
 
 
 
Fixed charges     146     497     1,284     1,021     782     1,446  
   
 
 
 
 
 
 
Deficiency of earnings to cover fixed charges   $ (8,357 ) $ (21,312 ) $ (13,806 ) $ (4,560 ) $ (11,887 ) $ (5,002 )
   
 
 
 
 
 
 



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Ratio of Earnings to Fixed Charges