0000891618-99-001961 DEFA14A 1 19990503 3DFX INTERACTIVE INC 0001010026 7372 770390421 CA 0201 DEFA14A 34 000-22651 99608256 4435 FORTRAN DR SAN JOSE CA 95134 4089354400 4435 FORTRAN DR SAN JOSE CA 95134 DEFA14A 1 000089161899001961-001-seq1-defa14a.txt DEFINITIVE ADDITIONAL MATERIALS