EXHIBIT 23.1
                                  ------------

              Consent of Independent Certified Public Accountants

    We consent to the incorporation by reference in the Registration Statement
on Form S-8 (No. 33-54990) and Form S-8 (No. 33-73350) pertaining to the 1992
Stock Option Plan; the Registration Statement Form S-8 (No. 33-54986) pertaining
to the 1992 Director Stock Option Plan; the Registration Statement (Form S-8 No.
33-57958) pertaining to the 1992 Employee Stock Purchase Plan; and Registration
Statement on Form S-8 (No. 33-22423) pertaining to the 1992 Employee Stock
Purchase Plan, the 1992 Stock Option Plan, and the 1994 Stock Incentive Plan of
our report dated September 25, 1998, with respect to the consolidated financial
statements incorporated by reference in this Annual Report (Form 10-K/A) for the
year ended June 30, 1998.



                                                        /s/Ernst & Young LLP
Tampa, Florida
September 25, 1998