EXHIBIT 12.1

COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES

	Year Ended December 31,
	1999			2000			2001			2002			2003
Income (loss) before income taxes and losses from joint venture	$	(21,937	)	$	(28,247	)	$	(182,305	)	$	(135,765	)	$	(165,986	)
Fixed charges		3,178			14,720			14,451			13,630			12,399
Total earnings and fixed charges		(18,759	)		(13,527	)		(167,854	)		(122,135	)		(153,587	)
Fixed charges		3,178			14,720			14,451			13,630			12,399
Ratio of earnings to fixed charges (1) (2)		NM			NM			NM			NM			NM

(1) The ratio of earnings to fixed charges is computed by dividing income (loss) before taxes and losses from joint venture plus fixed charges by fixed charges. Fixed charges consist of interest expense (including interest expense from capital leases) and the estimated portion of rental expense deemed by us to be representative of the interest factor of rental payments under operating leases. Earnings were insufficient to cover fixed charges for the years ended December 31, 1999, 2000, 2001, 2002 and 2003 by approximately $21.9 million, $28.3 million, $182.3 million, $135.8 million and $166.0 million, respectively.

(2) NM — Not meaningful.