Bill-

>I have a control on Page2. If focus in on the control on Page2, and I click Page 3, the Page1 tab gets the focus, but the control on page2 is still visible, and I can edit it. In addition, I cannot change to page1 until I click on the page2 tab (even though I can edit the control on page2).
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>I changed my code by putting it into the page3.control.uienable and it works fine, but I would still like to solve this problem.

I should have picked up on the NODEFAULT earlier. That command was stopping the DEACTIVATE on page 2 from firing. If you omit it, you should be okay.