missing e-mail OWA After migration to Exchange 2010

After migrating my Exchange 2007 SP2 to Exchange 2010, when i look in the OWA (from 2010) I can see there are (for example) 48 Items, the only problem is, it only shows 4/5 items, While in my inbox which has sometimes over 100 items, it shows all of those items.

I Cannot find anything in the Option of the web access, nor in the options / Policy's in the EMC. The e-mail does show up in Outlook 2007

Config: Domain has only 2008 R2 servers (left) and all servers are updated with the latest updates.
Mindless999Asked:
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tl121000Commented:
What web browser are you using for Outlook Web App?
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Mindless999Author Commented:
I tried it with: Internet Explorer / Firefox / Safari.

I just tried the "light" version, and this one does show all the items in the directory.
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Mindless999Author Commented:
Can someone tell me what I should do to have this e-mail in my webmail again?
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seb_ackerCommented:
Hello

Isn't it the Outlook web App 2010 new functionnality : CONVERSATION VIEW ???
if you select your messages, you will see that you can select underneath messages, related to the same conversation.

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Mindless999Author Commented:
Yes it is, but even when i expand it, it does not show all messages (that was one of the first things i looked into)
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seb_ackerCommented:
Hum...
did you try to disable conv. view :

It's a tickbox. Click on the "date" link next to the words "Arrange By" (date might say something else obviously). There is a tickbox right at the bottom that says 'conversation'.

is it better ?
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Mindless999Author Commented:
Even tough it does not show up as conversations on the webmail when turning off the conversations, it indeed shows the other e-mails. How should I be able to solve it so the e-mails show even tough it is on coversation. or should I report this to microsoft?
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seb_ackerCommented:
Are you sure that the missing emails in conversation view, are not classified under another conversation ? (have you tried a research by text, once in Conversation view ?)

If yes, it could be interesting to imply microsoft, yes. I never saw that behavior.
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Mindless999Author Commented:
I am adding a ticket to Microsoft and will put up the solution when it has been resolved

Thanks for the help so far.
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WestminsterAdminsCommented:
We are experiencing an identical problem and are looking for a solution.  As a test, we moved an old mailbox to Exchange 2010 and added a subfolder with two messages.  Under Exchange 2010 OWA with conversation view enabled, the folder item count is 3 but we see only 2 messages.  When we disable conversation view, we see all three messages.

When we use the full Outlook 2010 client to view the folder, everythjing is fine, but not in OWA 2010.
owa2010-noconv.jpg
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WestminsterAdminsCommented:
Another image file - OWA with conversation view enabled
owa2010-withconvview.jpg
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Mindless999Author Commented:
I have had contact with microsoft and they told me this was a Bug, this part will be solved in later patches, if im correct in a service pack (altough i am not sure wich that will be).
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