User Not Not Showing in Address Book for Outlook

We have a user who started here a couple of weeks ago that apparently is not appearing under our Address Book in our Outlook 2007.  Now, I know he is in the system because when we take our Outlook's out of Cache Mode, he appears.  When we turn it back on, he doesn't.  We currently have cache mode active to where if our Exchange server ever went down, to our users, it wouldn't show as being offline and they can continue to write and send email as is until it is back up, then it would deliver from the outbox.  All my other users show up fine except this one person.  Can someone tell me if there is a trick or a solution to getting him to appear in our Outlook Address book.  We currently are running Exchange 2007 Standard on a Windows 2003 Server 64bit.
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MASEE Solution Guide - Technical Dept HeadCommented:
Please have  a look, This may help
Try this - control panel --> mail, disable cached mode, open outlook, open the address book and make sure you're on the GAL, close outlook, control panel --mail, re-enable cached mode, open Outlook and look at the address book again, it should have updated.



MASEE Solution Guide - Technical Dept HeadCommented:
Have you tried creating a new outlook profile for the same user in the same PC?
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yo_beeDirector of Information TechnologyCommented:
Did you confirm that the Hide From Address book is no checked in ADUC?
Is  there more than 1 server handling the GAL?
If so force replication between them using Sites and Services.
Mostly it happens if the local OAB files got corrupted.

I suggest, closed the outlook, go to 'C:\Users\a.ali\AppData\Local\Microsoft\Outlook' find all the '.OAB' files and delete them. Open Outlook and download the OAB and confirm.

This path is for windows Vista and 7.
RLAIncAuthor Commented:
In response to yo_bee...

Yes, I confirmed he is not hidden from the address book in ADUC.  

No, there isnt more then one server handling the GAL but we do have 2 domain controllers, 1 as a PDC and the other as a BDC.  Our BDC handles GAL.  

I have forced replication as well as ran a gpupdate /force using the dos prompt and still nothing.  Like I said, he appears when I take my Outlook out of Cache mode but doesnt when I turn it back on.  

In response to abbasiftt...

No, I have not tried creating a new profile cause he currentlyu has mail data in his one now and not sure how to go about doing that without clearing anything out.

In response to by abdulalikhan...

Ill try your methods now.
Ok try and let me know. Thanks
RLAIncAuthor Commented:
Abdul...what if I don't see any .OAB files listed?
RLAIncAuthor Commented:
ABdul...I think it worked, I found a folder with a real long character name and went in and found like 7 or 8 .oab files from January there.  I deleted them and as soon as i did, opened outlook and saw that user.  So let me ask this, do i need to do this for everyone not able to see him there then that are having the same issue?
Yes, you have to do it for everyone.
RLAIncAuthor Commented:
Why is this an individual issue that I have to fix seperately and is there a way to do this at the server rather then go to people's machine, especially if I have a large office?  what seemed to have happened anyway?.
There are two things which you should do,

- Create a new user in Exchange, Update the Offline address book and restart the Exchange File Replication service on CAS server, Download the full offline address book at client side and see if the new user is updating on the client which you just modified for OAB.

- Create a new offline address book on the server, point all the database to point to the new offline address book. If you are not using public folder / outlook 2003 don't check the public folder distribution. Download the full address book at the problem clients. Also verify if the new settings has been replicated by checking the autoconfiguration of outlook.

Also confirm, are all the outlook clients are effected.

OAB corruption can also be due to anti-virus application. Try to exclude the oab files from scanning.

For troubleshooting, enable outlook troubleshooting logging and download and check the event. Also check the events on the CAS server when you download the OAB at client side, view the application logs, System logs and IIS logs.

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RLAIncAuthor Commented:
Ok, apparently while i was out on vacation, it looks like my user has been removed from the GAL.  He was there last week after I made the changes recommended by abdul, any thoughts on what to do here?  FYI, i have no performed the last mentioned steps right above.  Do i need to do that to make this work officially?
Please do answer on my last comments and follow the procedure.
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