Hi, I have created a database to store all my car magazine information. I have an "Enter Data Form" where one of my entries is a combo box. The combo box is linked to the [car year] Table. When I click on the combo box side arrow I get the years "1930; 1940;1950, 1960 etc. I scroll to the year :say 1950 select it and then click back into the chosen field and manually change the '0' to '3'.... = 1953. I would like to automate this function further and scroll down the combo box list to; say 1950 and when highlighted it would open a secondary column with the years from 1951-1959... then I could choose 1953 and that would save me from manually having to change the last digit of the year. Would I be looking at using some kind of subform? Thank you for your help. regards Hector.