OWA: Reply button is not working

Hello.

I have some Windows XP SP2 PCs that my users use to check email via Outlook Web Access 5.5.

The problem is that whenever I click the reply button in OWA nothing happens.

There is an article at microsoft.com that mentions a problem with the XP popup blocker that causes problems to OWA functionality.

This solution solved the problem in some PCs but… there are 2 XP SP2 PCs that although they have the popup blocker “turned off” the problem is not solved (“reply button is not working”).

I suspect that something is going wrong with the Windows XPs configuration settings.

Any ideas?

Thank you in advance.