Debtor filed an objection to a creditor's proof of claim that was filed as unsecured claim even though it was filed with proof of perfection of a deed of trust securing the obligation. As treatment of creditor's claim as unsecured would frustrate the debtor's ability to confirm a plan which proposes to pay his unsecured creditors in full, the Court disallowed the proof of claim and ordered the creditor to file an amended claim as a secured creditor or be bound by amount of arrearage set forth in debtor's plan.