A Study Of A New Medicine (GW679769) For The Treatment Of Social Anxiety Disorder

Inclusion Criteria: * Patients with Generalized Social Anxiety Disorder as the primary diagnosis. * If female, must commit to consistent and correct use of an acceptable method of birth control. Exclusion Criteria: * Patients with any other psychiatric disorder as a primary diagnosis or within 6 months prior to screening. * Patients with Body Dysmophic Disorder, Schizophrenia, Schizoaffective Disorder, or a Bipolar Disorder. * Patients who pose a current suicidal or homicidal risk or have made a suicide attempt within the past 6 months or have ever been homicidal. * Patients who have a positive urine test at screen for illegal drug use and/or a history of substance abuse or dependence (alcohol or drugs) within the past 12 months. * Patients with an unstable medical disorder. * Female patients who are pregnant, lactating, or planning to become pregnant during a specified time during the study. * Patients who are taking other psychoactive medications.