Acute Respiratory Distress Syndrome (ARDS) and a lesser condition that occurs prior to ARDS, Acute Lung Injury (ALI), are medical conditions that occur when there is severe inflammation and increased fluids (edema) in both lungs, making it hard for the lungs to function properly. Patients with these conditions require treatment that includes the use of a breathing machine (ventilator). The purpose of this study is to find out whether giving albuterol (a drug commonly used in asthmatics) or not giving albuterol to patients with ALI or ARDS makes a difference in how long it takes for a patient to be able to breath without the ventilator.