Your tab order is wrong on the page I am guessing you are using a form?
look at the properties for each control and find the 'tab index' property
this is a numerical sequence from 0-whatever it defines your tab order 0
being the control that gets focus first.
Also under design view for the form, click on the view menu, then tab order
this allows you to change the tab order visually (does the same as above).
