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EXHIBIT 11.1

COMPUTATION OF NET LOSS PER SHARE
(in thousands, except per share amounts)

|                                                                                             |                                                     |                                                                                                                   |        |                    |        |                   |        |        |        |      |        |         |        |   |        |         |        | 
|-------------------------------------------------------------------------------------------- | --------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------- | ------ | ------------------ | ------ | ----------------- | ------ | ------ | ------ | ---- | ------ | ------- | ------ | - | ------ | ------- | ------ | 
|                                                                                             |                                                     |                                                                                                                   |        | Three Months Ended |        | Nine Months Ended
|                                                                                             |                                                     |                                                                                                                   |        | September 30       |        | September 30     
|                                                                                             |                                                     |                                                                                                                   |        |                    |        |                  
|                                                                                             |                                                     |                                                                                                                   |        | 2002               |        | 2001              |        | 2002   |        | 2001
|                                                                                             |                                                     |                                                                                                                   |        |                    |        |                   |        |        |        |     
|COMPUTATION OF BASIC NET LOSS PER SHARE:                                                     |                                                     |                                                                                                                   |        |                    |        |                   |        |        |        |      |        |         |        |   |        |        
|                                                                                             | Net loss                                            |                                                                                                                   | $      | (10,405            | )      |                   | $      | (7,448 | )      |      | $      | (35,013 | )      |   | $      | (49,179 | )     
|                                                                                             |                                                     |                                                                                                                   |        |                    |        |                   |        |        |        |      |        |         |        |   |        |        
|                                                                                             | Weighted-average shares of common stock outstanding |                                                                                                                   |        | 32,528             |        |                   |        | 26,477 |        |      |        | 32,458  |        |   |        | 26,313  |       
|                                                                                             |                                                     |                                                                                                                   |        |                    |        |                   |        |        |        |      |        |         |        |   |        |        
|                                                                                             | Basic net loss per share                            |                                                                                                                   | $      | (.32               | )      |                   | $      | (.28   | )      |      | $      | (1.08   | )      |   | $      | (1.87   | )     
|                                                                                             |                                                     |                                                                                                                   |        |                    |        |                   |        |        |        |      |        |         |        |   |        |        
|COMPUTATION OF DILUTED NET LOSS PER SHARE:                                                   |                                                     |                                                                                                                   |        |                    |        |                   |        |        |        |      |        |         |        |   |        |        
|                                                                                             | Net loss available to common stockholders           |                                                                                                                   | $      | (10,405            | )      |                   | $      | (7,448 | )      |      | $      | (35,013 | )      |   | $      | (49,179 | )     
|Weighted-average number of shares of common stock and common
stock equivalents outstanding 
|                                                                                             |                                                     | Weighted-average shares of common stock outstanding                                                               |        |                    | 32,528 |                   |        |        | 26,477 |      |        |         | 32,458 |   |        |         | 26,313 | 
|                                                                                             |                                                     | Weighted-average number of common stock equivalents
applicable to stock options and employee stock purchase
plans |        |                    | 124    |                   |        |        | 592    |      |        |         | 334    |   |        |         | 541    | 
|                                                                                             |                                                     |                                                                                                                   |        |                    |        |                   |        |        |        |      |        |         |        |   |        |        
|Common stock and common stock equivalents                                                    |                                                     |                                                                                                                   | 32,652 |                    |        |                   | 27,069 |        |        |      | 32,792 |         |        |   | 26,854 |        
|                                                                                             |                                                     |                                                                                                                   |        |                    |        |                   |        |        |        |      |        |         |        |   |        |        
|Diluted net loss per common stock and common stock equivalents
(a)                           |                                                     | $                                                                                                                 | (.32   | )                  |        | $                 | (.28   | )      |        | $    | (1.07  | )       |        | $ | (1.83  | )      
|                                                                                             |                                                     |                                                                                                                   |        |                    |        |                   |        |        |        |      |        |         |        |   |        |        



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|(a) |  | This calculation is submitted in accordance with Item
601(b)(11) of Regulation S-K although it is not required by
SFAS No. 128 because it is antidilutive.
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