The actual dose level of cisplatin that you will receive will be decided when you enter the study. Participants on this study will be enrolled in groups of 3, and each group will be given a specific dose level of cisplatin. The first group will receive the lowest dose of cisplatin. If there are no severe or life-threatening side effects in this first group of patients, the next group will receive a higher dose of cisplatin and so on. This process of increasing the dose level for each new group of participants will continue until some patients have severe or life-threatening side effects. At that point, the dose level of cisplatin will be lowered and tested again in more participants.