From: Perko on
we are having problem when users are trying to use OWA on Exchange 2003.
The problem is that we can not write new message or do reply on old messages.
When we press new message nothing is happening.
I think that the problem is on the server side because we have tried from
different client PC's (different OS - XP, Vista, 7) with different web
browsers ( IE 6,7, Firefox, Opera).
Only in IE 6 I have managed to write new message but when you press send the
message disappears.In the down left corner I get the message Page error

The server is Exchange 2003 Standard with SP2 and all updates for Windows
and Exchange, including KB911829 that resolves this issue.
I really need help, so please write me