Outlook Web\IE problem

Never seen this before – hope someone has!

I have a brand-new notebook, running Vista Home Premium and IE 7. When I access my work email using Outlook Web Access, I can get my messages as normal. However, when I attempt to compose, reply or forward a message – anything requiring an editor – instead of the normal white edit window, I just get a blue background, with the small red X in a box, as if an image or item is missing. I’ve looked at all the places I can think of to set the email editor (set as windows, now, I believe).

I’m thinking this is just a setting, or a missing component, but I’m not an IE or Outlook guru.

Any ideas?

Thanks!