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Outlook Cache Mode Stopping Emails from arriving

Hi all - some (but not all) of our users are no longer receiving emails directly into their inbox. this seems to have happened for no reason at all.  To receive mail they now have to click on the update button in send and receive. If we remove the caching mode from their outlook profiles then it works fine.  Weve moved the .OST file for one user so it creates a new one but that made no difference, and we would like to keep the cached mode on.
Set up is exchange 2003, windows 7, outlook 2010
Setup is exchange 2003, windows xp, outlook 2003


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1 Solution
Have seen this before.
Need to check that the OST is on the Local Drive of the PC

What I have done in the past was blow away the users outlook profile
Delete or Rename all *.ost
Creat a new Outlook profile From scratch, with Cached Exchange Mode enabled at the time of setup.

When done it should pull all current emails off the excahnge server, and cache them in the ost at the same time

Would also pay to check the 2003 users have Office SP3 installed
1. Have you considered the possibility that the Outlook profile is corrupt?
A. shutdown outlook
B. Open the Mail Connector and delete the profile that is being used
C. Open Outlook and it shoudl prompt you to create a new profile
D. Configure the new profile and set it to use cache
E. Wait for it to finish and see if the problem persist

2. If the above doesn't work have you considered a corrupted system profile?  I had a few issues like this happen and as soon as I recreated the system profile for the users all was well.  To validate it try this.

If you have a spare machine or a machine  that one or more of the troubled users have never logged into, then

A: Log them into the new machine
B: Launch Outlook, create a profile, set to use cache and see if the issue persist.  
C:  If it works without issue then the problem is a corrupt  system profile.

Let me know how both of these turn out
Thanks for the points
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