I want to put combo-boxs on a separate form that is linked to my main form. Then using these combo-boxes click on a value such as an authors name. To show all the titles by that Author. Then to click on a certain title to show that record. I can get it to work when the combo-boxes are on my main form, but not on a sub-form. Can some-one help me please. Any suggestions would be greatly appriciented.