General Practitioners have a central role to play in the management of depression in their older patients. However, studies suggest that GPs tend to underdiagnose and undermanage depression in this age group. Continuing Medical Education is an important part of helping GPs keep up to date and improve their practice. We set out to see what effect a half a day postgraduate training course had on the views and knowledge of a group of local GPs on the management of depression in the elderly. Twenty-one general practitioners attended the course and of these fifteen completed a questionnaire with clinical vignettes before and six weeks after the course. Analysis of the questionnaire and vignette data showed significant improvements in a number of areas: in particular, GPs' knowledge about antidepressant treatment increased, as did their preference for cognitive behavioural therapy out of a range of psychological treatments. This study indicates that a teaching package on depression in the elderly can improve general practitioner's management knowledge. It also suggests that old age psychiatrists can play an important part in the education of their GP colleagues. Nevertheless, further studies are needed to ensure that educational programmes make an effective impact on the underdiagnosis and undertreatment of depression in the elderly.