 Arm II: Patients receive docetaxel as in arm I and bortezomib IV over 3-5 seconds on days 1, 8, and 15. Treatment repeats every 28 days for 4 courses in the absence of disease progression or unacceptable toxicity. Patients with responding or stable disease after 4 courses receive bortezomib alone as above in the absence of disease progression or unacceptable toxicity. 