Computer help: Need help on e-mail

Need help on e-mail

First of, I'm not sure which section I should write this issue because I don't really know where the problem is.

I just got my new laptop. It's the small HP with Intel dualcore T7200 (2GHz), 2 gig or RAM and run by Window Vista Home Premium. This is my first Vista that use IE7.

I always use Microsoft Outlook Web Access to continue my office work at home. When I went into the Web Access thru IE7, I couldn't write any New Mail nor Repl or Forward. I could typed the recipients and Subjects but I couldn't access Message Body. The Message Body's box has the little red "x" sign and did not allow any text to be input.

When I used other browsers (on the new laptop)including AOL, I didn't have that problem. On my other notebooks, I also use IE7 but never give me this problem so I doubt about the default setting of IE7 being the culprit.

What is the problem here? I suspect that it has something to do with how the IE security setting set by Vista. If so, how do I modify the setting?

Thank you in advance.