SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS AND RESERVES (IN THOUSANDS) Balance at Write-offs Balance Classification Beginning and at end of Year Additions Recoveries of Year Year ended March 31, 1997: Allowance for doubtful accounts and sales returns $2,692 $ 348 $ (118) $3,158 Year ended March 31, 1996: Allowance for doubtful accounts and sales returns $2,985 $ 203 $496 $2,692 Year ended March 31, 1995: Allowance for doubtful accounts and sales returns $2,359 $1,169 $543 $2,985