EXHIBIT 11.1 STATEMENT REGARDING COMPUTATION OF NET LOSS PER SHARE (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS) YEAR ENDED DECEMBER 31, ------------------------------- 1996 1995 1994 --------- --------- --------- Net loss.......................................................................... $ (8,417) $ (8,427) $ (6,763) --------- --------- --------- --------- --------- --------- SHARES USED IN NET LOSS PER SHARE COMPUTATION: Weighted average shares of common stock outstanding............................. 6,432 945 780 Shares related to Staff Accounting Bulletins Nos. 55, 64, and 83................ 107 427 427 --------- --------- --------- Shares used in net loss per share computation..................................... 6,539 1,372 1,207 --------- --------- --------- --------- --------- --------- Net loss per share................................................................ $ (1.29) $ (6.14) $ (5.60) --------- --------- --------- --------- --------- --------- SHARES USED IN COMPUTING PRO FORMA NET LOSS PER SHARE: Shares used in computing historical net loss per share (from above) ............ 6,539 1,372 Adjusted to reflect the effect of the assumed conversion of convertible preferred stock from the date of issuance .................................... 1,875 5,154 --------- --------- Shares used in computing pro forma net loss per share............................. 8,414 6,526 --------- --------- --------- --------- Pro forma net loss per share...................................................... $ (1.00) $ (1.29) --------- --------- --------- ---------