PIC24F32KA302 comparator module? (RodoPIC)

Hi all,This is for mplabx v3.51 and xc16 v1.31 in Win7 64-bit.I'm trying to set up comparator 1 to trigger an interrupt when the inverting input (C1INB/RB2) goes below the Vref level in the non-inverting input. CVREF is set for 2.17v according to me. The ..