OUTLINE: This is a dose escalation study. Patients receive BMS-188797 IV over 1 hour. Treatment continues every 21 days in the absence of disease progression or unacceptable toxicity. Cohorts of 3-6 patients receive escalating doses of BMS-188797 until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 6 patients experience dose limiting toxicities. Patients are followed every 4 weeks until toxicities resolve, and then at the investigator's discretion.