I have some .aspx pages that are displaying an odd behavior in Internet Explorer 7 & 8 (but not Firefox).
I am using master pages. The page has a table with a large number of dropdowns, textboxes and radio/checkbox lists, plus two gridviews. Some of these controls have autopostback and, when the page postsback, the table is empty on the screen. The contents can momentarily be seen before they disappear. The area for the table and the outer border show, but none of the contents (including cell borders) show. The source shows all the html. If there is a link on the page (outside of the table) and it is moused over (there is a hover effect in the CSS), the table suddenly appears.
The behavior is intermittent, though one user is experiencing it very frequently now (though never saw it for the first day of use, now it is almost constant on her one computer).