Exhibit 12.1
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
(in thousands)
| For the Year Ended December 31, | ||||||||||||||||||||
| 2001 | 2002 | 2003 | 2004 | 2005 | ||||||||||||||||
| Earnings (loss)— |
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| Loss before income taxes |
$ | (10,090 | ) | $ | (34,017 | ) | $ | (29,789 | ) | $ | (93,271 | ) | $ | (88,593 | ) | |||||
| Add fixed charges: |
||||||||||||||||||||
| Interest expense on indebtedness |
692 | 1,936 | 990 | 4,480 | 6,557 | |||||||||||||||
| Estimated interest on rental expense |
341 | 329 | 300 | 1,611 | 3,900 | |||||||||||||||
| Amortization of deferred closing costs related to convertible notes |
— | 294 | 156 | 521 | 816 | |||||||||||||||
| Amortization of discount on convertible notes |
— | 511 | 271 | — | — | |||||||||||||||
| Total adjusted loss |
$ | (9,057 | ) | $ | (30,947 | ) | $ | (28,072 | ) | $ | (86,659 | ) | $ | (77,320 | ) | |||||
| Fixed charges— |
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| Interest expense on indebtedness |
$ | 692 | $ | 1,936 | $ | 990 | $ | 4,480 | $ | 6,557 | ||||||||||
| Estimated interest on rental expense |
341 | 329 | 300 | 1,611 | 3,900 | |||||||||||||||
| Amortization of deferred closing costs related to convertible notes |
— | 294 | 156 | 521 | 816 | |||||||||||||||
| Amortization of discount on convertible notes |
— | 511 | 271 | — | — | |||||||||||||||
| Total fixed charges |
$ | 1,033 | $ | 3,070 | $ | 1,717 | $ | 6,612 | $ | 11,273 | ||||||||||
| Coverage deficiency |
$ | (10,090 | ) | $ | (34,017 | ) | $ | (29,789 | ) | $ | (93,271 | ) | $ | (88,593 | ) | |||||