EXHIBIT 12 STATEMENT OF COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES and RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS (Continuing operations only; presented in thousands, except ratio factors) Nine Months Ended Fiscal Years Ended September 30, June 30, -------------------------------------------------------------------- 1995 1996 1997 1998 1999 2000 ----- ----- ----- ----- ----- ----- Loss before income taxes ($26,480) ($15,970) ($42,351) ($32,692) ($21,456) ($24,963) Add Fixed Charges: Interest expense 3,629 2,828 3,493 6,564 7,118 6,418 Interest factor portion of rentals 1,435 1,605 1,575 1,409 1,246 924 -------------------------------------------------------------------------------------- 5,064 4,433 5,068 7,973 8,364 7,342 Loss before income taxes and fixed charges ($21,416) ($11,537) ($37,283) ($24,719) ($13,092) ($17,621) ====================================================================================== Ratio of earnings to fixed charges --- (1) --- (1) --- (1) --- (1) --- (1) --- (1) ====================================================================================== Ratio of earnings to combined fixed charges and preferred stock dividends (2) --- (1) --- (1) --- (1) --- (1) --- (1) --- (1) ====================================================================================== (1) Earnings were not sufficient to cover "fixed charges" or "combined fixed charges and preferred stock dividends" as follows (in thousands): $26,480, $15,970, $42,351, $32,692 and $21,456 in the fiscal years ended September 30, 1995, 1996, 1997, 1998 and 1999, respectively, and $24,963 in the nine months ended June 30, 2000. (2) The Company commenced payment of preferred stock dividends in fiscal 1997, in the amount of $1.8 million per year. In addition, the Company will commence payment of additional cumulative preferred stock dividends on newly issued preferred stock at the rate of $250,000 per year, from July 31, 2000 on a quarterly basis.