DWA meeting problem

I have a user, when she tries to accept a meeting in her email, a windows will pop-up with the error message “Someone else modified this document at the same time.”

SOLUTION: Click your borwser’s back button to try again.

This happens for every meeting invite that she tries to accept. If I just exit out of the window. It will send the sender an acceptance email. If I go to her calendar, it doesn’t show the handshake symbol, like it usually does. Instead it will just show an email icon. I can open the meeting up then and accept the meeting. The sender then gets another acceptance email.

I don’t have a problem declining a meeting, just when accepting a meeting.

Has anyone come across this before or know how to fix this?

Thanks

Subject: DWA meeting problem…

Did anyone ever come up with a solution to this? I’m starting to experience the same thing. It was sporadic at first, but is now affecting every user.

Thanks.