<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET AS OF 6/30/00 AND CONSOLIDATED STATEMENT OF
OPERATIONS FOR THE QUARTER ENDED 6/30/00 AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> MAR-31-2001
<PERIOD-START> APR-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 3,753
<SECURITIES> 786
<RECEIVABLES> 2,461
<ALLOWANCES> 423
<INVENTORY> 77
<CURRENT-ASSETS> 7,217
<PP&E> 16,815
<DEPRECIATION> 5,789
<TOTAL-ASSETS> 19,495
<CURRENT-LIABILITIES> 4,114
<BONDS> 0
1,922
0
<COMMON> 39,679
<OTHER-SE> (33,026)
<TOTAL-LIABILITY-AND-EQUITY> 19,495
<SALES> 2,443
<TOTAL-REVENUES> 3,011
<CGS> 657
<TOTAL-COSTS> 949
<OTHER-EXPENSES> 4,277
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 152
<INCOME-PRETAX> (2,654)
<INCOME-TAX> 7
<INCOME-CONTINUING> (2,661)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (2,661)
<EPS-BASIC> (.17)
<EPS-DILUTED> (.17)
</TABLE>