Do I need to file Form 593 for CA taxes if I qualify for exemption and no there was no witholding from sale of primary home?

I received Form 593 from escrow and I qualify for the exemption (Part III, marked #1) so there was no taxes witheld from the sale. Form 593 has nothing marked under "witholding calculation" yet TT will not allow me to continue without marking something in this section. Please help!