 If you are found to be eligible to take part in this study, you will receive decitabine by vein over one hour, once a day, for 5 days 1 course. If this is not possible due to complications, you will receive the drug as an injection under the skin twice a day for 5 days 1 course. Treatment will be given every 4 to 8 weeks depending on how well your blood counts recover. 