EXHIBIT 11 Computation of Pro Forma Net Loss Per Common Share (In thousands, except per share data) Year Ended December 31, -------------------------------------- 1997 1998 1999 -------------------------------------- Net Loss ................ $(9,064) $(11,907) $(13,318) ====================================== Basic and diluted weighted-average shares outstanding ...... 9,405 9,556 10,678 ====================================== Basic and diluted net loss per share .......... $ (0.96) $ (1.25) $ (1.25) ======================================