Exhibit
11.1
  Computation
of Loss Per Share
 (Amounts
in thousands except per share amounts)
 
 Basic
loss per common share for the fiscal years ended December 31, 2008, 2007 and
2006 are as follows:
 
 Years
      ended December 31,2008
                    
                    
                    2007
                    
                    
                    2006Net
      loss
                    
                    $
                    (17,046
                    )
                    
                    $
                    (19,712
                    )
                    
                    $
                    (10,856
                    )Weighted
      average common shares outstanding
                    
                    
                    138,080
                    
                    
                    
                    132,529
                    
                    
                    
                    124,801Basic
      loss per common share
                    
                    $
                    (0.12
                    )
                    
                    $
                    (0.15
                    )
                    
                    $
                    (0.09
                    )
 
 Diluted
loss per common share for the fiscal years ended December 31, 2008, 2007 and
2006 are as follows:
 
 Years
      ended December 31,2008
                        
                        
                        2007
                        
                        
                        2006Net
      loss
                        
                        $
                        (17,046
                        )
                        
                        $
                        (19,712
                        )
                        
                        $
                        (10,856
                        )Weighted
      average common shares outstanding
                        
                        
                        138,080
                        
                        
                        
                        132,529
                        
                        
                        
                        124,801Dilutive
      securities (1)(2)
                        
                        
                        —
                        
                        
                        
                        —
                        
                        
                        
                        —Diluted
      average common shares outstanding
                        
                        
                        138,080
                        
                        
                        
                        132,529
                        
                        
                        
                        124,801Diluted
      loss per common share (1)(2)
                        
                        $
                        (0.12
                        )
                        
                        $
                        (0.15
                        )
                        
                        $
                        (0.09
                        )
 
 (1) For
purposes of calculating the dilutive loss per common share for the years ended
December 31, 2008, 2007 and 2006, the assumed exercise of dilutive securities
(in-the-money stock options) is not taken into consideration, as its effect is
anti-dilutive. Had these been exercised, zero, 0.3 million and 2.3 million
additional shares of common stock would have been assumed outstanding for each
of the years in the years ended December 31, 2008, 2007 and 2006,
respectively.
 
 (2) For
purposes of calculating the dilutive loss per common share for the years ended
December 31, 2008, 2007 and 2006, the assumed conversion of the 5.45%
Convertible Plus Cash Notes due 2007 and the 5.45% Convertible Notes due 2010 is
not taken into consideration as their effect is anti-dilutive. Had the 5.45%
Convertible Plus Cash Notes due 2007 and the 5.45% Convertible Notes due 2010
been converted, 4.7 million, 11.8 million and 6.0 million additional shares of
common stock would have been assumed outstanding for each of the years in the
years ended December 31, 2008, 2007 and 2006, respectively.