<qa>  What is the maximum tumor response or stabilization of disease after 6 courses?OUTLINE: Patients receive docetaxel IV over 1 hour once weekly for 3 weeks and oral erlotinib once daily beginning on day 1. Treatment repeats every 4 weeks for a minimum of 6 courses in the absence of unacceptable toxicity or disease progression. Patients achieving maximal tumor response or stabilization of disease after 6 courses may continue to receive erlotinib alone until disease progression. 