Before you can start treatment on this study, you will have "screening tests." These tests will help the doctor decide if you are eligible to take part in this study. The tests may be performed within 28 days of starting the study drug. You will have a physical exam, including measurement of vital signs (blood pressure, heart rate, temperature, and breathing rate), height, and weight. Your medical history will be recorded. You will be asked to fill out a questionnaire regarding any neuropathy (nerve problems) you may have. The questionnaire will take about 1 minute to complete. You will have an electrocardiogram (ECG -- a test that measures the electrical activity of the heart). You will also have blood (about 4-5 teaspoons) drawn one time and urine collected (over 24 hours) to check the status of your WM. This blood is also used to screen for hepatitis. You will have an x-ray of your chest. You will have computed tomography (CT) scans of your abdomen and pelvis to see which part of your body is involved with WM. If your chest x-ray is positive, you will also have a CT scan of your chest. Women who are able to have children must have a negative blood (about 2 teaspoons) or urine pregnancy test before starting the study. You will also have a bone marrow aspiration and biopsy. To collect a bone marrow aspirate/biopsy, an area of the hip bone will be made numb with an anesthetic, and a small amount of bone marrow and bone will be withdrawn through a large needle.