Patients receive sargramostim subcutaneously (SC) or intravenously (IV) over 2 hours on days 0-13 of courses 1, 3, and 5; monoclonal antibody Ch14.18 IV over 10 hours on days 3-6 of courses 1, 3, and 5 and on days 7-10 of courses 2 and 4; and isotretinoin orally (PO) twice daily (BID) on days 11-24 of course 1, on days 14-27 of courses 2, 4, and 6, and on days 10-23 of courses 3 and 5. Patients also receive aldesleukin IV continuously on days 0-3 and on days 7-10 of courses 2 and 4. Treatment repeats every 24-32 days for 6 courses in the absence of disease progression or unacceptable toxicity.