OUTLINE: This is a dose escalation and efficacy study. Patients receive gemcitabine IV over 30 minutes on days 1 and 8 immediately followed by oxaliplatin IV over 2 hours on day 1. Treatment repeats every 3 weeks. Patients achieving stable disease, partial response, or regressive disease continue with therapy. Patients achieving complete response for two consecutive evaluations receive an additional 2 courses of therapy. Phase I (closed as of 7/5/00): Cohorts of 3-6 patients receive escalating doses of gemcitabine and oxaliplatin 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 toxicity. Phase II: Patients receive the MTD of gemcitabine and oxaliplatin as in phase I. Patients are followed every 3 months for 1 year, and then every 6 months for 4 years.