Sync Outlook e-mail at home and work

Here's a stumper -- hoping someone here can tackle.

I have an Axim x30 middle. My PC has XP Pro with Activesync 3.7.1 I use Outlook 2002 with an Exchange Server.

When I "work offline" in Outlook (usually at home), all items are synchronised perfectly.

When I work online in Outlook (in the office), I get only some of the the mail items (i.e. usually the newest ones only).

When I go back to working offline, and re-sync, it shows
the right messages - when I go to online and re-sync, it
shows the reduced number.

(I have ensured that Activesync lets through all messages
by removing the size/# of days old checkboxes). Anyone
have any ideas?

[valdarin]

Perhaps when you are online and sync it is syncing with your mail server ... typically those are going to hang on to messages for a few weeks and delete them (by default - obviously you can change that). So ... when online it goes and fishes your emails off your email server but when offline it just pulls them out of your pc's inbox. I had a similar issue and that was my problem.

How did you fix it?