Interleukin-2 and interferon alpha will be given during the one week of rest from temozolomide. This will require one week of hospitalization. Interleukin-2 is given as a continuous infusion through the catheter over the first 5 days. The first day the dose will be high and it will be decreased slowly to a lower dose on the last 3 days. The interferon alpha will be given as an injection in the fatty tissues under the skin once a day for 5 days on the same days the interleukin-2 is given.