Radiation Therapy and Sargramostim in Treating Patients With Advanced Solid Tumors

RATIONALE: Colony-stimulating factors such as sargramostim increase the number of immune cells found in bone marrow or peripheral blood. Radiation therapy uses high-energy x-rays to damage tumor cells. Combining radiation therapy with sargramostim may kill more tumor cells. PURPOSE: This phase I/II trial is studying the side effects of giving radiation therapy together with sargramostim and to see how well it works in treating patients with advanced solid tumors.