5. Patients must not have had prior treatment with Capecitabine, 5-FU or a combination of Temozolomide with CCNU (Lomustine) or BCNU (Carmustine). Patients who received only Temozolomide during radiation therapy and did not receive adjuvant chemotherapy with Temozolomide and/or those who received Gliadel (BCNU) wafers at surgery without adjuvant chemotherapy with BCNU or CCNU are eligible if 6 months has passed since the treatment(s).