did you remove screws from the back of the cabinet as well as the ones that typically are installed on the side of the cabinet that attach it to the adjacent cabinets on either side? have you pulled the refrigerator out of the opening to look underneath and behind this section of cabinet to see if there is another hidden screw or hanger that needs to be removed perhaps at the back of the opening but underneath the cabinet you are trying to remove. Post back with more info...maybe someone can offer more suggestions. LJ