Problem in enabling Active X in IE

Hi,

I have a problem in IE.

There are two accounts in my Windows XP. One is for me and one is for my daughter. Both are set to be adminstrators having all right.

In my daughter's account, the Active X cannot work even if I set it to be enabled and set low security level.
1. The IE cannot access the standard mode in www.gmail.com which requires Active X
2. The IE cannot go to the webiste http://windowsupdate.microsoft.com/
3. The update tools from Tools of IE cannot function
4. The MSN 8.0 cannot function
5. I cannot install IE 7.0 too.

I believe it is a problem of Active X in my daughter's account.

Please help. Many thanks in advance.

chan