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I found the answer <br />
It is caused by Run Outlook 2007 on a computer that has the time zone set to (GMT+02:00) Jerusalem. If you have recurring appointments that occur after April 1, you cannot open the appointment. Additionally, you receive the following error message: <br />
<br />
and KB939596 fix it.
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I found the answer
It is caused by Run Outlook 2007 on a computer that has the time zone set to (GMT+02:00) Jerusalem. If you have recurring appointments that occur after April 1, you cannot open the appointment. Additionally, you receive the following error message:

and KB939596 fix it.

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I moved to outlook 2007<br />
Now there are many recurrences meeting that when I open I get the following error:<br />
&quot;You changed one of the recurrences of this item, and this instance no longer exists. Close any open items and try again&quot;<br />
If I open these meetings from outlook 2003 they are OK<br />
Why does it happens? how can I fix the appointments without deleting them?
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I moved to outlook 2007
Now there are many recurrences meeting that when I open I get the following error:
"You changed one of the recurrences of this item, and this instance no longer exists. Close any open items and try again"
If I open these meetings from outlook 2003 they are OK
Why does it happens? how can I fix the appointments without deleting them?

Outlook 2007 recurrences meetings that were updated

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.