Exhibit 12.1
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
| Three-months | For the Year Ended December 31, | |||||||||||||||||||||||
| ended March 31, 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | |||||||||||||||||||
Earnings (loss)- | ||||||||||||||||||||||||
Loss before income taxes | $ | (27,836 | ) | $ | (93,271 | ) | $ | (29,789 | ) | $ | (34,017 | ) | $ | (10,090 | ) | $ | (5,847 | ) | ||||||
Add fixed Charges: | ||||||||||||||||||||||||
Interest expense on indebtedness | $ | 1,627 | $ | 4,480 | $ | 990 | $ | 1,936 | $ | 692 | $ | 843 | ||||||||||||
Estimated interest on rental expense | 476 | 1,611 | 300 | 329 | 341 | 305 | ||||||||||||||||||
Amortization of deferred closing costs related to convertible notes | 204 | 521 | 156 | 294 | — | — | ||||||||||||||||||
Amortization of discount on convertible notes | 271 | 511 | — | — | ||||||||||||||||||||
Total Adjusted Loss | $ | (25,529 | ) | $ | (86,659 | ) | $ | (28,072 | ) | $ | (30,947 | ) | $ | (9,057 | ) | $ | (4,699 | ) | ||||||
Fixed Charges- | ||||||||||||||||||||||||
Interest expense on indebtedness | $ | 1,627 | $ | 4,480 | $ | 990 | $ | 1,936 | $ | 692 | $ | 843 | ||||||||||||
Estimated interest on rental expense | 476 | 1,611 | 300 | 329 | 341 | 305 | ||||||||||||||||||
Amortization of deferred closing costs related to convertible notes | 204 | 521 | 156 | 294 | — | — | ||||||||||||||||||
Amortization of discount on convertible notes | 271 | 511 | — | — | ||||||||||||||||||||
Total Fixed Charges | $ | 2,307 | $ | 6,612 | $ | 1,717 | $ | 3,070 | $ | 1,033 | $ | 1,148 | ||||||||||||
Coverage deficiency | $ | (27,836 | ) | $ | (93,271 | ) | $ | (29,789 | ) | $ | (34,017 | ) | $ | (10,090 | ) | $ | (5,847 | ) | ||||||