David,

Do you have a PageRefresher object? Something that makes sure your pages refresh as the first activate?

>I find I don't need to click on my button, all I have to do is click anywhere in the page (page in a pageframe) and the grid mysteriously refreshes itself to show the correct content, and continues to do so without any further "clicking".
>I've got no code for click event in page/pageframe or form.