IE8 Fields scrapable on some computers but not others

[stupomer]

Yes, also can't capture accessible objects either- just shows the entire browser frame rather than subelements. But others computers works fine..strange. If this doesn't sound like anything known to you, I wouldn't spend a lot of time because may be so idiosyncratic to various computers in my workplace. But it's about 50-50 of the various pc's.
Thanks!,
Stuart