EXHIBIT 11
                                                                               
                                                                               
               Computation of Pro Forma Net Loss Per Common Share
                      (in thousands, except per share data)
                                                                               


                                                                     Year Ended December 31, 
                                                              ------------------------------------- 
                                                                1995                        1996   
                                                              -----------------  ------------------
                                                                                                          
                                                                                                 
Net Loss.............................................          $(5,067)                    $(6,141)       
                                                              ========                    ========       
                                                                                                          
Pro forma weighted average shares outstanding:                                                            
     Common stock...................................             2,550                       7,494        
     Convertible preferred stock....................             2,210                         355
     Cheap stock (treasury stock method)............                88                          --      
                                                              --------                     -------        
                                                                                                          
     Pro forma weighted average shares                                                                    
     outstanding....................................             4,848                       7,849        
                                                              ========                     =======        
                                                                                                          
Pro forma net loss per share........................          $  (1.05)                     $(0.78)       
                                                              ========                     =======