We're experiencing a problem with recently upgraded Windows 7 users that use Outlook 2007 SP2.

When a person amends a meeting to add or remove an attendee, and they send the update to the newly added or person that was removed from the meeting, it actually sends an update to all the invitees.

Scenario:

User A creates a meeting in his calendar, invites User B and sends the meeting request.

User B accepts the meeting.

At a later date, User A decides to invite User C. He does that and clicks on the Send button. He then receives some pop-ups.

He selects to send the update to the added or deleted attendees and clicks OK.
He then receives a message saying the meeting has changed. He selects, Save changes and send update and clicks OK.
He then receives another message asking to send the update to the added or deleted attendees and clicks OK again...

The message is then sent to User C and also an update is sent to User B.

This never happened when we were using XP. Any help would be appreciated.

Thanks,
Mike.