Outlook deleted emails get doubled up

Hi,

We have a user Outlook 2010 set up with an Exchange 2007 email profile.
When user deletes email from their Inbox, it appears in Deleted items twice, and one of those emails is marked as unread.
There is nothing in the rules section that may affect this behaviour, and there are no add-ons apart from the default bunch.
Where else can we look at the issue?
networknAsked:
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Sarat chsystem adminCommented:
Have you Tried opening Outlook in safe mode

If not try to run outlook in Safe mode for few days and observe.

How about in OWA??
Amit KumarCommented:
A lot of bugs in Outlook 2007, please try installing latest update with SP it may resolve your issue.

If you have any possibility so install Office 2010 with latest SP and check.

This is not server side issue, this is totally outlook application side issue. Yes for verification you can check in OWA but depends which update you have in Exchange 2007. because older version does not have recover delete items option in OWA. Please follow this article for OWA
Alexei KuznetsovMicrosoft Outlook MVPCommented:
It looks like you have some kind of add-in or VBA macro that messes with your deleted items. Try to run Outlook in safe mode:
outlook.exe /safe

Open in new window

If it will not dupe deleted items any more, then disable installed add-ins one by one to find the one that causing the issue. Also check your VBA macros in Outlook.

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networknAuthor Commented:
Thanks, doing a safe mode helped. Going through a list of add-ins now.
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