I'm am using a pageframe with two pages. The first page has item request information and the second contains a grid that I use to enter account distribution into. I want to be able to force the user to put in an account distribution that equals 100%. I have a method for checking the total distribution on the form and a property on the form that holds .t./.f. based on the result of the method. My problem is trying to force the user to remain on page 2 until the distribution is 100%. I tried using the deactivate event, but that only fires when the user clicks on the next page (not when the user clicks off the pageframe altogether). Even when the user clicks on the next page and the deactivate fires, I can't seem to force the user back onto the distribution page. Because I'm using a grid to enter the distribution, I have no LostFocus event on the grid, page, or pageframe to work with. What should I do?